Operant Conditioning by B. F Skinner - 1580 Words

Introduction People do on a day to day basis, many actions without realizing it, and most of the time, they don’t know why they do them. Certain reinforcements, some positive, and some negative have conditioned their actions and thoughts. In this essay, I chose Burrhus Frederic Skinner who came up with the theory of operant conditioning. B. F. skinner,(March 20, 1904 – August 18, 1990) is an American psychologist who believed that we do have such a thing as a mind, but that it is simply more productive to study observable behavior rather than internal mental events. As Skinners theory was based on the earlier work of Thorndike, he also believed that the best way to understand a behavior is to look at the causes of the†¦show more content†¦For example he studies the behavior of rats under carefully controlled laboratory conditions. Skinner Box Skinner illustrated positive reinforcement by placing a hungry rat in his Skinner box (Appendix 2). The box contained a lever in the side and as the rat moved about the box it would accidentally knock the lever. As the lever move, a food pellet would drop into a container next to the lever. The rats quickly learned to go straight to the lever after a few times of being put in the box. The consequence of receiving food if they pressed the lever ensured that they would repeat the action again and again. Skinner illustrated negative reinforcement by placing a rat in his Skinner box and then subjecting it to an unpleasant electric current which caused it some discomfort. As the rat moved about the box it would accidentally knock into the lever. Immediately as it did so, the electric current would be switched off. The rats quickly learned to go straight to the lever after a few times of being put in the box. The consequence of escaping the electric current ensured that they wo uld repeat the action again and again. Human and animals are not alike Based on the Skinner box, we are able to conclude that Skinner actually conducts and derived his theories from rats and other animals such as pigeon. The experiment on pigeon was referred to as the â€Å"Superstition in Pigeon† in which a pigeon was kept in a cage and at regularShow MoreRelatedThe Theory Of Behavioral Learning Theory901 Words   |  4 PagesB. F. Skinner is one of the top psychologist who invented the radical behaviorism and critical psychiatry. B. F. Skinner believed that behavior is maintained from one condition to another through similar or same consequences across situations. Skinner believed that actions followed by a positive effect tend to be repeated, while actions followed by negative effect were not. I believe the behaviorist theory states that individuals develop certain behavior traits based off of their reaction to certainRead MoreEssay Burrhus Frederic Skinner1132 Words   |  5 PagesBurrhus Frederic Skinner People do on a day to day basis, many actions without realizing it, and most of the time, they don’t know why they do them. Certain reinforcements, some positive, and some negative have conditioned their actions and thoughts. All organisms, including humans, are greatly influenced by the consequences produced by their own behavior. The environment holds the key to most of the changes that occur in the way a person behaves and a human’s own behavior brings consequencesRead MoreOperant Conditioning and Skinners Method1158 Words   |  5 Pagesï » ¿Operant Conditioning Introduction Operant conditioning is also referred to as instrumental conditioning and is reported as a method of learning that occurs through rewards and punishments for behavior. Through operant conditioning an association is made between a behavior and a consequence for that behavior. (Cherry, 2007) Operant conditioning was first examined by B.F. Skinner, a behaviorist and this is why it is referr3ed to as Skinnerian conditioning. (Cherry, 2007) Skinner held thatRead MoreSkinner And His Contribution On Behaviorism And Operant Conditioning1500 Words   |  6 Pagesby many psychologists for many years now. B.F. Skinner was known as one of the most controversial intellectual figures of the late twentieth century who introduced behavior analysis and the idea of reinforcement (Myers, 2010). Skinner developed much of his work based from the law of effect by Edward Thorndike, who was also known as a philosopher. This research paper will focus on B.F. Skinner and his contribution on behaviorism and o perant conditioning. This paper will provide an in-depth explanationRead MoreSkinner, Behaviorism, And Operant Conditioning1671 Words   |  7 PagesSkinner took major efforts toward the approach of behaviorism to expand the field, following the initial works of Edward Thorndike. He was instrumental in redesigning and defining the law of effect. Skinner segmented behaviorism into two main sections such as respondent conditioning and operant conditioning. He associated that the later the consequences tailored to the behaviors are manipulated, the more frequent similar scenarios are played out in the future. Introduction SkinnerRead MoreF. Skinner s Operant Conditioning Theory1356 Words   |  6 PagesBurrhus F. Skinner or more commonly known as B. F. Skinner is regarded as one of the most influential psychologists in the world by his peers. In comparison to other behaviorist Skinners approach was referred to as radical behaviorism. Behaviorist search to find answers to how humans behave through observations in the environment not in the mind (Conversation 1973). Specifically, B. F. Skinner was not interested in theories that involve speculation, but more importantly theories that could be provenRead MoreThe Theory Of Operant Conditioning Theory Essay746 Words   |  3 PagesBurrhus Frederic Skinners, also known as B. F. Skinner, was a well-known American psychologist who came up with the idea of what is known as operant conditioning (Rholetter, 2013). Operant conditioning is one of two theories in learning that illustrates behaviorism (Kretchmar, 2015). It is according to Rholetter (2013), â₠¬Å"the idea that behavior is the learned result of consequences†. Skinner believed that learning during operant conditioning is done based upon the outcome of a given situation (LefrancoisRead MoreThe Theory of Operant Conditioning1136 Words   |  5 Pagesï » ¿ The Theory of Operant Conditioning PSY390 October 6, 2014 Introduction The study of human behavior by psychologists such as B.F. Skinner, Edward Thorndike, Ivan Pavlov, and Watson is fascinating. These five psychologists each have different theories on human behavior. There are similarities and differences in each of the theories. Ivan Pavlov’s classical conditioning theory, studied animals and formed the basis for behavioral psychology (Cherry, 2013). Edward Thorndike’sRead MoreBehavior Investigation And The Concept Of Reinforcement1403 Words   |  6 Pagespsychologist. In an attempt to analyze human conduct, B. F. Skinner presented behavior investigation and the concept of reinforcement. Skinner was raised in a little railroad town name Susquehanna in Pennsylvania (Bjork, 1993). Skinner s dad was an excellent lawyer, and his mom was a receptive lady who constantly reminded Skinner to pay consideration to the ideas of other individuals. Notwithstanding confinements from his mom, little Skinner took joy in his youth, since he built inve ntive contraptionsRead MoreEssay Is Learning a Science?801 Words   |  4 Pagesmethods are classical conditioning and operant conditioning. Precisely, what is conditioning? Conditioning is the process of changing behavior in such a way that an action formerly associated with a particular stimulus becomes associated with a new and unrelated stimulus. Both of these learning methods are basic forms of learning, which leads me to the discussion of operant conditioning. Is operant conditioning a Science? What is operant conditioning? Operant conditioning is a technique of behavioral

The Crusades A Page In Worlds History - Free Essay Example

Sample details Pages: 7 Words: 2165 Downloads: 7 Date added: 2019/08/08 Category History Essay Level High school Topics: Crusades Essay Did you like this example? The Crusades were multiple religious holy wars between the Christians and Muslims. To understand more of the Crusades you need to understand the religious background of it first. There were three major religions during the time of The Crusades which were Christianity, Islam, and Judaism. Don’t waste time! Our writers will create an original "The Crusades: A Page In Worlds History" essay for you Create order Judaism is the oldest of the three religions, origins dating back to 1850 BC. The Christian religion began as a sect of Judaism, but soon attracted many non-Jewish converts and diverged further further and further from Jewish practices and beliefs. Christianity soon became the number one religious belief. Christians considered Jerusalem to be their most sacred city because it was the site of many important events in the life of Christ. Jerusalem and Israel fell under control of the Roman Empire during the first century A.D. the period in which Christianity arose. Emperor Constantine converted Christianity and declared it as the official religion of the Empire, enabling Christianity to spread throughout the vast territory under Roman domination. By the fifth century, the Roman Empire had grown so enormous that it was divided into two parts the western and eastern which was ruled by two emperors. Rome remained the capital of the western region while Byzantium renamed Constantinople in honor of Constantine served as the capital of the eastern region. The Western Church was governed by the pope in Rome and the Byzantine emperor was the head of the Eastern Church.   The division of the Roman Empire, as well as the   different fates of the two areas, contributed to a growing disparity between the eastern and western branches of Christianity. Overtime the Byzantine emperor and the Roman popes fought to gain total control over the church. Tension boiled when the pope excommunicated the patriarch of Constantinople, one of the highest-ranking clergy of the Eastern Church. The Muslims also posed a threat to Western Christians. The southern regions of spain fell into the hands of Muslim invaders in the early seven hundreds, Sardinia and Corsica were toppled a century later, and Sicily came under Muslim domination in nine hundred and two. Throughout the eighth century, the Muslims made unsuccessfully advances on France; during the ninth century they raided several cities in southern Italy and terrorized the outskirts of Rome. During the tenth and eleventh centuries, popes led armies in repulsing the Muslims from Italy, and Spanish Christians began the long reconquest of their lands. Thus, by the time of the First Crusade, Western Europeans were long accustomed to fighting Muslims. Many people considered the Crusades as simply an extension of their struggle to drive the Muslims out of Europe. The common knights we think of when we hear about the crusades is a man in a full suit of armour and have a giant red cross on their chest. They’re called Templar’s. Founded by a knight from Champagne, Hugh of Paynes. Hugh persuaded King Baldwin the first of Jerusalem to give him a wing in the royal palace, which had once been a mosque and was situated in the area of the temple. The Templars, though at first being under Benedictine control, soon became independent and established themselves as a tight-knit community. With the active support of the king, they recruited far and wide, and formed themselves into three classes: first, the knights, who were often of noble birth and who wore a red cross on a black tunic. These sergeants, besides being warriors, also accepted as grooms, and bailiffs to the Templars. Thirdly the clerics, whose duties were religious, medical, and non-military. These knights were men of military and ambition who eagerly sought any opportunity of d efending the Kingdom of Jerusalem and of gaining favour with its king. The Templars in their pride did not bow their the knee to the king their only master being the pope. Soon the glamour and fighting-fame of the Templars rapidly spread through Europe, it was thought that these arrogant horsemen in the white tunics would become the most powerful Christians in the Arab world. The First Crusade began when pope Urban the second went to France and launched a titanic armed pilgrimage. The Crusaders set out on a quest to arrive at Constantinople. â€Å"I arrived at Constantinople with great joy by the grace of god the emperor verily received me with dignity and honor and with the greatest affection as if I were his own son.† Stephen of Blois wrote to his wife Adela after arriving in Constantinople. Here’s some background information on Stephen and why he was an important aspect of the crusades.   Stephen, often referred to as Stephen of Blois, was a grandson of William the Conqueror. He was King of England from 1135 to his death, and also the Count of Boulogne in right of his wife. Stephens reign was marked by the Anarchy, a civil war with his cousin and rival, the Empress Matilda. He was succeeded by Matildas son, Henry II, the first of the Angevin kings. Stephen was born in the County of Blois in middle France; his father, Count Stephen-Henry, died while Stephen was still young, and he was raised by his mother, Adela. Placed into the court of his uncle, Henry I, Stephen rose in prominence and was granted extensive lands. Stephen married Matilda of Boulogne, inheriting additional estates in Kent and Boulogne that made the couple one of the wealthiest in England. Stephen narrowly escaped drowning with Henry Is son, William Adelin, in the sinking of the White Ship in 1120; Williams death left the succession of the English throne open to challenge. When Henry I died in 1135, Stephen quickly crossed the English Channel and with the help of his brother Henry of Blois, a powerful ecclesiastic, took the throne, arguing that the preservation of order across the kingdom took priority over his earlier oaths to support the claim of Henry Is daughter, Empress Matilda. The early years of Stephens reign were largely successful, despite a series of attacks on his possessions in England and Normandy by David I of Scotland, Welsh rebels, and the Empress Matildas husband, Geoffrey of Anjou. In 1138 the Matilda’s half-brother Robert of Gloucester rebelled against Stephen, threatening civil war. Together with his close advisor, Waleran de Beaumont, Stephen took firm steps to defend his rule, including arresting a powerful family of bishops. When the Empress and Robert invaded in 1139, however, Stephen was unable to crush the revolt rapidly, and it took hold in the south-west of England. Captured at the battle of Lincoln in 1141, Stephen was abandoned by many of his followers and lost control of Normandy. Stephen was freed only after his wife and William of Ypres, one of his military commanders, captured Robert at the Rout of Winchester, but the war dragged on for many years with neither side able to win an advantage. Stephen became increasingly concerned with ensuring that his son Eustace would inherit his throne. The King tried to convince the Church to agree to crown Eustace to reinforce his claim; Pope Eugene III refused, and Stephen found himself in a sequence of increasingly bitter arguments with his senior clergy. In 1153 the Empresss son, Henry FitzEmpress, invaded England and built an alliance of powerful regional barons to support his claim for the throne. The two armies met at Wallingford, but neither sides barons were keen to fight another pitched battle. Stephen began to examine a negotiated peace, a process hastened by the sudden death of Eustace. Later in the year Stephen and Henry agreed to the Treaty of Winchester, in which Stephen recognised Henry as his heir in exchange for peace, passing over William, Stephens second son. Stephen died the following year.   Ã‚  Ã‚   Another important person who was an important aspect of the Crusades was Pope Urban II. On November 27, 1095, Pope Urban II made the most influential speech of the Middle Ages, giving rise to the Crusades by calling all Christians in Europe to war against Muslims in order to reclaim the Holy Land. Born Odo of Lagery in 1042, Urban was a protege of the great reformer Pope Gregory VII. Like Gregory, he made internal reform his main focus, railing against simony (the selling of church offices) and other clerical abuses prevalent during the Middle Ages. Urban showed himself to be an adept and powerful cleric, and when he was elected pope in 1088, he applied his statecraft to weakening support for his rivals, which was Clement III. By the end of the 11th century, the Holy Land the area now commonly referred to as the Middle East had become a point of conflict for European Christians. Since the 6th century, Christians frequently made pilgrimages to Jerusalem, but when the Seljuk Turks took control of Jerusalem, Christians were barred from the Holy City. When the Turks then threatened to invade the Byzantine Empire and take Constantinople, Byzantine Emperor Alexius I made a special appeal to Urban for help. This was not the first appeal of its kind, but it came at an important time for Urban. Wanting to reinforce the power of the papacy, Urban seized the opportunity to unite Christian Europe under him as he fought to take back the Holy Land from the Turks. At the Council of Clermont, in France, at which several hundred clerics and noblemen gathered, Urban delivered a rousing speech summoning rich and poor alike to stop their in-fighting and embark on a righteous war to help their fellow Christians in the East and take back Jerusalem. Urban denigrated the Muslims, exaggerating stories of their anti-Christian acts, and promised absolution and remission of sins for all who died in the service of Christ.   Ã‚  Ã‚   Urban’s war cry caught fire, mobilizing clerics to drum up support throughout Europe for the crusade against the Muslims. All told, between 60,000 and 100,000 people responded to Urban’s call to march on Jerusalem. Not all who responded did so out of piety: European nobles were tempted by the prospect of increased land holdings and riches to be gained from the conquest. These nobles were responsible for the death of a great many innocents both on the way to and in the Holy Land, absorbing the riches and estates of those they conveniently deemed opponents to their cause. Adding to the death toll was the inexperience and lack of discipline of the Christian peasants against the trained, professional armies of the Muslims. As a result, the Christians were initially beaten back, and only through sheer force of numbers were they eventually able to triumph. Urban died in 1099, two weeks after the fall of Jerusalem but before news of the Christian victory made it back to Europe. His was the first of seven major military campaigns fought over the next two centuries known as the Crusades, the bloody repercussions of which are still felt today. Urban was beatified by the Roman Catholic Church in 1881. The Western Church was governed by the pope in Rome and the Byzantine emperor was the head of the Eastern Church. The division of the Roman Empire, as well as the different fates of the two areas, contributed to a growing disparity between the eastern and western branches of Christianity. Hugh persuaded King Baldwin the first of Jerusalem to give him a wing in the royal palace, which had once been a mosque and was situated in the area of the temple. He was King of England from 1135 to his death, and also the Count of Boulogne in right of his wife. When Henry I died in 1135, Stephen quickly crossed the English Channel and with the help of his brother Henry of Blois, a powerful ecclesiastic, took the throne, arguing that the preservation of order across the kingdom took priority over his earlier oaths to support the claim of Henry Is daughter, Empress Matilda. When the Empress and Robert invaded in 1139, however, Stephen was unable to crush the revolt rapidly, and it took hold in the s outh-west of England. Captured at the battle of Lincoln in 1141, Stephen was abandoned by many of his followers and lost control of Normandy. Urban showed himself to be an adept and powerful cleric, and when he was elected pope in 1088, he applied his statecraft to weakening support for his rivals, which was Clement III.By the end of the 11th century, the Holy Land the area now commonly referred to as the Middle East had become a point of conflict for European Christians. Wanting to reinforce the power of the papacy, Urban seized the opportunity to unite Christian Europe under him as he fought to take back the Holy Land from the Turks.At the Council of Clermont, in France, at which several hundred clerics and noblemen gathered, Urban delivered a rousing speech summoning rich and poor alike to stop their in-fighting and embark on a righteous war to help their fellow Christians in the East and take back Jerusalem. Urban denigrated the Muslims, exaggerating stories of their anti-Christian acts, and promised absolution and remission of sins for all who died in the service of Christ.

Midterm Review Essay - 963 Words

†¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ MComm100†©Ã¢â‚¬â€œÃ¢â‚¬ ©Mass†©Communication†©in†©Society†© Midterm†©Review†©Ã¢â‚¬â€œÃ¢â‚¬ ©12th†©Ed†© (Chapters†©1†©Ã¢â‚¬â€œÃ¢â‚¬ ©9)†© Understand†©the†©definition†©of†©Ã¢â‚¬Ëœencoding’†© What†©is†©Ã¢â‚¬Ëœnegative†©feedback’?†© Characteristics†©of†©a†©mass†©communication†©audience†© What†©is†©a†©Ã¢â‚¬Ëœmedia†©vehicle’?†© Characteristics†©of†©mass†©communication†©organizations†© What†©vehicles†©have†©increased†©the†©mobility†©of†©the†©mass†©media?†© Trust†©in†©the†©media†©is†©considered†©what?†© Definition†©of†©Ã¢â‚¬Ëœsurveilance’†©Ã¢â‚¬ ©with†©regard†©to†©individual†©media†©use†© Consequences†©of†©relying†©on†©mass†©media†©for†©interpretation†© Definition†©of†©the†©socialization†©function†© Which†©media†©is†©devoted†©primarily†¦show more content†¦Which†©types†©of†©retailers†©are†©most†©important†©to†©the†©record†©industry?†© What†©is†©the†©function†©of†©an†©Ã¢â‚¬Å"A†©Ã¢â‚¬ ©R†Ã¢â‚¬ ©person†©with†©the†©record†©industry?†© Advantages†©of†©multitrack†©recording†© Attributes†©of†©the†©mass†©communication†©audience†©in†©general†© Factors†©that†©are†©making†©traditional†©mass†©media†©business†©models†©obsolete†© †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ What†©is†©meant†©by†©the†©term†©Ã¢â‚¬Å"everything,†©everywhere’?†© First†©medium†©to†©use†©digital†©communication†© Know†©the†©characteristics†©of†©television†© Consequences†©of†©the†©digital†©revolution†© Know†©features†©of†©the†©mobile†©media†© The†©first†©tool†©for†©social†©media†©was†©what†©vehicle?†© Advantages†©of†©Ã¢â‚¬Ëœjazz†©journalism’†© What†©is†©the†©Audit†©Bureau†©of†©Circulation?†© Who†©was†©Marconi†©and†©what†©did†©he†©accomplish?†© The†©network†©that†©was†©originally†©part†©of†©the†©NBC†©Network†© The†©biggest†©problem†©facing†©online†©radio†©is†©what†©issue?†© The†©most†©prevalent†©listening†©venue†©for†©Satellite†©radio†© What†©is†©a†©format†©with†©regard†©to†©broadcasting?†© Features†©of†©National†©Public†©Radio†©(NPR)?†© What†©was†©the†©significance†©of†©the†©Ã¢â‚¬Ëœnickelodeon’†©around†©1900?†© Significance†©of†©the†©Ã¢â‚¬Ëœjukebox’†©during†©the†©1920’s†© Era†©when†©rock†©music†©became†©part†©of†©the†©counterculture†© Required†©Midterm†©Essay†©Questions†©Ã¢â‚¬ ©(50†©points†©each)†© 1. The follow question is one of two to be answered for the midterm. - BeShow MoreRelatedMidterm Review1485 Words   |  6 PagesInteractive Management Science MSamp;E 107/207, Midterm Review The Flaw of the Averages Mindle 1 / Uncertainty vs. Risk * Risk is in the eye of the beholder * Risk reflects how uncertain outcomes cause loss or injury to a particular individual or group * Risk attitude measures the willigness to incur risk in the quest of reward * Different risks to the same uncertainty Mindle 2 / An uncertain number is a shape * A distribution * â€Å"Uncertain numbers† * Risk is subjective Read MoreMidterm Review2002 Words   |  9 Pagesï » ¿The Federal Circuit Court of Appeal has appellate jurisdiction over the U.S. Claims Court. True Which of the following terms best describes the decision reached by an arbitrator? Award The dispute resolution method that is most likely to be used by a regulatory agency to negotiate the provisions of the regulations with the interested groups so that there is less likelihood of a challenge once the regulations are promulgated is: regulatory negotiation With reference to the federal governmentRead MoreReview for Midterm I1634 Words   |  7 PagesCalifornia State University –Fullerton Econ 201- Review for Midterm I Dr. El Hag- Spring 2010 Multiple Choice Identify the choice that best completes the statement or answers the question. ____1.The slope of a line that passes through the points (10, 15) and (20, 7) is a. | -5/4. | b. | -4/5. | c. | 4/5. | d. | 5/4. | ____2.If Shawn can produce more donuts in one day than Sue can produce in one day, then a. | Shawn has a comparative advantageRead MoreGeology Midterm Review2404 Words   |  10 PagesIntroduction to Geology GEOL-101 Midterm 1 Review Based on the textbook: Understanding Earth, 6th Edition, by Grotzinger and Press CH 1: earth system Summary The human creative process, field and lab observations, and experiments help geoscientists formulate testable hypotheses (models) for how the Earth works and its history. A hypothesis is a tentative explanation focusing attention on plausible features and relationships of a working model. If a testable hypothesis is confirmed by a large Read MoreMidterm Review Bio1291 Words   |  6 PagesBiology Final Exam Review Sheet a) The identity of each element is defined by the number of protons in its nucleus a. The physical and chemical properties of each element are defined by: i. Number of protons and neutrons in the nucleus ii. Number of electrons orbiting the nucleus Proton = mass of one a positive charge Neutron = mass of one and no charge Electron = negligible mass and a negative charge Isotopes of an element a) Isotopes are different forms of the same element a.Read MoreMidterm Review Essay9272 Words   |  38 PagesChapter 16 1.) All of the following factors contributed to explosive economic growth during the Gilded Age EXCEPT: Question options: | a) | availability of capital for investment. | | b) | a growing supply of labor. | | c) | abundant natural resources. | | d) | low tariffs. | | e) | federal land grants to railroads. | | | 1 / 1 point | 2.) By 1890, the majority of Americans: Question options: | a) | worked as farmers. | | b) | worked as independent craftsmenRead MoreEssay on Midterm Exam ( Review)1542 Words   |  7 PagesExam Review 1 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Each of the following functions are within the framework for Human Resources Management EXCEPT: a. recruitment and selection. b. training and development. c. employee relations. d. employee discipline. 2. Which of the following is NOT a primary impact that technology has had on HRM? a. It has improved the processes of internal and external communications. b. It has altered the methodsRead MoreUs History Midterm Review777 Words   |  4 PagesUS History Midterm Study Guide General Government: 1. What were the Articles of Confederation? 2. Explain the roles of the three branches of the US government play? 3. Explain the political concept of Federalism 4. Be able to differentiate between Dual Federalism Cooperative Federalism (cake?) 5. What purpose does the Bill of Rights serve? 6. Identify the two houses of Congress and the term length of each. 7. What percentage of Congress has to vote to override a vetoRead MoreMidterm Review Questions Set 11481 Words   |  6 PagesREVIEW QUESTION SET #1 FOR THE MIDTERM EXAM QUESTION 1 (PRODUCTIVITY) ElectroPlus manufactures electronic components. It has recorded data for the last three years as shown in the table below. ElectroPlus Productivity Data (in millions of dollars) 2009 2010 2011 Sales 220 258 248 Materials 124 146 142 Labor 56 66 56 Overhead 16 24 20 a) Calculate a measure of labor productivity for each year and comment on the pattern. b) Calculate a measure of multifactor productivity for each year usingRead MorePsci 231 Midterm Review2130 Words   |  9 PagesSection One: 1. What is, â€Å"Utilitarianism† and why is it important to the study of businessgovernment relations? Utilitarianism is a usually described as the greatest happiness for the greatest number. It reflects the action that produces the most happiness for people; meaning that an action is good if it produces a higher ultility of happiness. The thoery treats all members of a society equally, balances the inequalities in wealth between rich and poor people and justifies human acts. For example

Martin Lynch-Gibbon, is a London wine merchant married to Antonia Free Essays

Martin Lynch-Gibbon, is a London wine merchant married to Antonia. They had wed due to convenience and they do not have a child. He is having an affair with Georgie, an academic younger than he is. We will write a custom essay sample on Martin Lynch-Gibbon, is a London wine merchant married to Antonia or any similar topic only for you Order Now She gets pregnant early on, but they end it. She attempts suicide after rejections by Martin and his brother. Seemingly out of nowhere, Antonia declares that she is leaving him. Martin is shocked. She goes with Palmer, one of their friends and her psychoanalyst. As it turns out, she and Palmer have been having an affair as well. Martin leaves their house, but he does not want his affair to go public, or be committed any further. Then he falls for Honor, Palmer’s stepsister who teaches anthropology at Cambridge. One night, he goes into her house uninvited and unannounced, and finds her in bed- with her stepbrother. Later, Antonia tells Martin that she has been seeing Alexander as well, his older brother, and it dates back to them having been introduced to each other. He turns to whisky to battle his problems. More than being an adulterer, he thinks of himself as a cuckold. â€Å"A Severed Head† explores fear of intimacy between the married couple, the fear of being in a relationship that values commitment. It also illuminates the ways in which sexual relationships are unraveled, especially when one manipulates or dominates the other. How to cite Martin Lynch-Gibbon, is a London wine merchant married to Antonia, Papers

Critical Care Nursing Health Restoration

Question: Describe about the Critical Care Nursing for Health Restoration. Answer: Introduction Sleep is a necessary natural function to preserve physiological and psychological health. Sleep is more vital for the critically ill patients of the intensive care unit for their health restoration. Yet, patients sleep in the ICU has been reported by a huge number of patients and their family members to be of reduced quality. Sleep alteration can be described as the apparent or definite changes in night-time sleep (both quantity and quality) with successive day-time deficiency. Sleep disruptions may be transient or acute, but frequently it is a recurrent difficulty in patients of intensive care unit. Sleep in ICU patients is frequently disrupted by diverse environmental factors of ICU settings. Sleep architecture gets significantly altered when sleep periods are fragmented by frequent awakenings due to ICU environmental factors. Numerous evidence suggested that a considerable percentage of ICU patients experience deprived sleep quality and repeated awakenings which subsequently contr ibute to physical and mental suffering. It is the duty of the nurses to mitigate these environmental factors contributing in sleep alteration for the wellbeing of the patients. Therefore, appropriate nursing interventions and recommendations are vital for patient-centered care. Sleeping alteration in intensive care patients Even though sickness, pain, discomfort, and medication subsidise to alterations of sleep patterns in patients of intensive care, the prime aspect producing sleep interruption is the ICU environment (Pisani 2015). Environmental elements including patient care activities (monitoring, therapeutic interventions and diagnostic measures), uncomfortable positions, excessive light, noise from several sources like alarms, conversations, ventilation, beepers, television and phones (Luetz et al. 2016) are have been purported to interrupt sleep in critically ill patients (Pisani et al. 2015). Major complaints from ICU patients include falling asleep, early morning awakenings with incapability to continue sleeping, remaining asleep, too much daytime drowsiness and non-restorative sleep (Pisani 2015). Irrespective of the causes, sleep alterations disrupts the circadian rhythm that plays an important role in the biological function and has been found to be connected with harmful bodily consequences such as fatigue,alterations in metabolism, immune function, protein catabolism and nitrogen stability (Pisani et al. 2015). Sleep deficiency and disturbance are identified to interrupt the recovery process in patients, reduce the quality of life and cognitive abilities. Furthermore, sleep pattern alterations can upsurge pain intensity, anxiety, and depression (Matthews 2011). According to the study of Carreira et al. (2015), even in critically ill patients without any sedation, sleep architecture, and quantity is severely disturbed. The severity of disease, comorbidities, and human interventions adversely upset sleep architecture and quantity. Sleep aberrations impact main ICU outcomes. Effects of noise level on sleep Noise intensities in ICU settings was recognized to be the prime environmental stressor for patients sleep alterations. Noise is a persistent factor in ICU due to the cacophony of medical activities and technological intensive care (Bihari et al. 2012).The World Health Organisation recommended that sound frequency within ICU must not surpass 30 decibel(A) at night in order to lessen sleep alteration. Noise intensities in ICU have progressively amplified over the last decades and healthcare professionals being the main source of the generated noises. Subjective investigations exploring the influences of sound on sleep specify that ICU patients ascertain the acquaintance to sound and incompetence to sleep as a key stressor (Luetz et al. 2016). In addition, objective surveys direct that the sound produced within the ICU environment is not favourable to the capability to sleep (Delaney et al. 2015). Effects of ICU medications on sleep Several of the drugs prescribed to the critically ill patients have strong effects of sleep pattern alterations. Opiates, antipsychotics, and benzodiazepines are associated with rapid eye movement sleep suppression. Standard sleep architecture can be affected by sedatives (Bihari et al. 2012). Sedation may have adverse impacts on sleep by affecting the normal characteristics of the sleep electroencephalogram (Matthews 2011 and Bihari et al. 2012). Figure 1: Impacts of drugs used in the Intensive Care Unit on sleep (Weinhouse and Schwab 2006). Physiological effects of sleep disturbance The chemo-sensitivity of the respiratory center of the brain is declined among sleep-deprived patients. Researches have showed many hostile impacts of sleep deficiency on respiratory muscle functioning (Kamdar et al. 2012). A substantial decrease in forced expiratory volume 1 (mean decline of six percent) and forced vital capacity (mean decline of five percent) in sleep-altered patients with the chronic obstructive pulmonary disorder compared to non-sleep-altered chronic obstructive pulmonary disease patients have been observed. Findings suggest that sleep-deficient conditions may cause patient hypoventilation, harmfully causing pulmonary reserves and generally ability and readiness to accelerate preventing from mechanical ventilation (Delaney et al. 2015). The appearance of cardiovascular disorders due to sleep alteration originates from the stimulus of the sympathetic nervous structure and the discharge of the catecholamine adrenaline and noradrenaline. As a consequence, heart rate and blood pressure level get increased because of modifications in baroreflex sensitivity (Delaney et al. 2015). The adaptive immune system and the effective function of the T-cells was found to be susceptible to sleep alterations, as researchers have discovered that sleep performs a vital part in T-cells extravasation. Moreover, the functioning of natural killer cells was revealed to be harmfully affected by altered sleep conditions (Delaney et al. 2015). Disruption of circadian rhythm and sleep alteration in critical conditions cause dysfunction of innate immune response (Dengler et al. 2015). Irregular cortisol levels in intensive care patients cause disorders with circadian rhythms, as cortisol discharge is generally amplified earlier to awakening to facilitate the patient into a status prepared to be active. An escalation in cortisol amounts and reduction of melatonin creates a tendency for patients to be in the insomniac condition which can promote the worsening of catabolic activity and surges oxygen intake (Delaney et al. 2015). Sleep alterations negatively impact carbohydrate metabolism causing insulin resistance and clearance of glucose. The rise in sympathetic nervous system functioning and the subsequent pressure reaction overwhelms the discharge of insulin from -cells of pancreas. This event within the ICU patients can intensify underlying comorbidities, putting those patients at risks for other secondary complications. For instance, increased patient mortality has been linked with instability in blood glucose levels (Delaney et al. 2015). Psychological effects of sleep alteration Sleep alteration in ICU environment can lead to delirium. It is well-recognised that sleep alteration is a usual event in critically diseased patients and delirium arises often in patients at greater threats (Barr et al. 2013). A rising frame of evidence proposing that the advancement of delirium due to sleep alteration caused by the disturbing ICU environment is an independent prognosticator of the greater span of stay, amplified morbidity and mortality, disposition to an institutional setting from the hospital, and impairment of cognitive abilities during discharge from hospital (Pulak and Jensen 2016). Impacts of sleep alteration on social abilities and quality of life Numerous investigation data have established that sleep alteration has deleterious impacts on the patients quality of life in ICU both in the course of their hospitalization and for a different span of time afterward their discharge. It has been proposed that the sleep fragmentation, endured by ICU patients may be linked to persistent neurocognitive dysfunction (Barr et al. 2013). Contemporary studies of sleep alteration and chronic sleep deficiency have confirmed neuro-cognitive scarcities that mount up with time, regardless of any adaptation to the subjective sense of sleepiness (Kamdar et al. 2012). Clinical investigation of patients with obstructive sleep apnea, who also suffered from sleep alteration occasionally related with hemodynamic variability and hypoxia. These studies have exhibited the deformities in a wide range of neuro-cognitive and social activities some of which can even persist for months even after beginning of treatment with the constant affirmative approach (Ba rr et al. 2013). Role of the nurses in addressing and minimizing the impacts of sleep alteration in ICU Nurses deliver the holistic care to the patients. It is a prime duty of a nurse to evaluate and minimize alteration in sleep patterns of patients due to ICU environment. Evaluation of sleep alterations According to Matthews (2011), depending on the patient's condition, a nurse should evaluate how the ICU environment, treatment procedures, and medications subsidise to sleep alterations. Sleep evaluation can be characterized as objective, behavioral, and subjective. The most effective method of measuring sleep is polysomnography (Elliott et al. 2013). Bispectral index is another method practiced in ICU to measure sleep (Matthews 2011). Most efficient behavioral measure is actigraph. It a leg or wrist accelerometer that registers gross motor activities and rests over a prolonged period (Solverson and Doig 2014). Uninterrupted actigraph observation is used in seriously ill patients to direct usage of medications, sedative and improve recognition of agitation (Matthews 2011). Subjective assessment approaches such as nursing observations and self-reports of patients can offer additional useful means of assessing sleep features and effectiveness of sleep interventions. Sedation assessment tool that uses descriptive statistical measures is actually more accurate than results of sleep and non-sleep conditions (Matthews 2011). As described by Matthews (2011), using own appraisal of the patients about their sleep is necessary since they are capable of comparing normal quantity and quality sleep with the quantity and quality of sleep during their serious disease conditions. Everyday sleep records, visual analog scale and quality of life feedbacks are essential and have been practiced in a diverse critical care observations. For the patients with stable conditions, verbal communication of trouble in falling asleep, sleep fragmentation and restlessness required to be promoted on a regular basis with the procedure of formal evaluations.Patients and their family members can also contribute insights to etiological aspects and evaluation of their insight of sleep complications and potential respite methods can facilitate suitable treatment (Aitken et al. 2016). Even though objective accounts of the quantity of sleep periods and disruptions may vary from the perception of the patients, monitoring of sleep and wakeful behaviours over twenty-four hours, and representations of physical and mental sleep fragmentation (e.g., pain, sound, anxiety) may be beneficial in evolving a comprehensive care strategy (Matthews 2011). Nursing interventions of sleep alterations If evaluations suggest sleep alterations a multidisciplinary methodology should commence immediately. Incorporation of assessment result of patients sleep arrays and habitual sleep rituals into the care plan is significant. Normal sleep patterns are specific for each patient and data collected via holistic and comprehensive assessments are necessary to be determined the etiology of sleep alterations. Anxiety in the ICU environment interferes with sleep. Nursing interventions such as relaxation therapy can help patients reduce anxiety (Matthews 2011). A nurse should also evaluate the potential sources of noise and act to minimize those noises. Simple measures like providing quiet time to allow the patient's mind to slow down, comfortable temperature, ventilation and dim light can increase the quality of sleep (Maidl et al. 2014). Research has shown that mild back massage before bedtime can effectively promote sleep (Matthews 2011). Providing pain relief shortly before bedtime and posi tioning patients comfortably can promote sleep. Excessive noise can cause sleep alterations that can result in ICU psychosis. Keeping the ICU ambient quite by lowering the volume on television and radio, avoiding the use of intercoms, setting beepers on non-audio mode, talking quietly on the unit and anticipating alarms on IV pumps are obligatory (Luetz et al. 2016). Using sound generators with soothing sounds like rainfall, ocean, and waterfall can induce sleep (Su et al. 2013). Observation of patients medication and diet is vital because difficulty in sleeping can be a side of drugs such as bronchodilators. In situations like this, nurses need to change medications immediately after the evaluation findings. Benzodiazepinesare frequently recommended in the treatment of sleep alterations (Matthews 2011). Conclusion Sleep alterations and related health complications are crucial difficulties for patients in intensive care units. Different environmental factors of ICU such as patient care activities, uncomfortable positions, excessive light, and noises, all contribute to a incompetence of the patients to sleep. A collective methodology that integrates evaluations of sleep alterations and disturbances, behavioral interventions, control of environmental factors, appropriate pharmacological management and educational are essential to diminish the influence of sleep alterations and disturbances in patients of ICU. Following the comprehensive assessments of environmental aspects of ICU, an effective care plan must be developed to deliver times of uninterrupted sleep and reduce disturbance, identification of medication regimens that can promote sleep and recommendation non-pharmacological interventions constructed on individual requirements and desires or the patients. Nurses possess the suitable positi on to detect problems in their own units that can hamper quality and quantity patients sleep. Support from not only the nurses but also from all associates of the healthcare crew is necessary for implementing environmental modifications and make advancement in addressing sleep and energy requirements for the patients. References Aitken, L.M., Elliott, R., Mitchell, M., Davis, C., Macfarlane, B., Ullman, A., Wetzig, K., Datt, A. and McKinley, S., 2016. Sleep assessment by patients and nurses in the intensive care: An exploratory descriptive study.Australian Critical Care. Barr, J., Fraser, G.L., Puntillo, K., Ely, E.W., Glinas, C., Dasta, J.F., Davidson, J.E., Devlin, J.W., Kress, J.P., Joffe, A.M. and Coursin, D.B., 2013. Clinical practice guidelines for the management of pain, agitation, and delirium in adult patients in the intensive care unit.Critical care medicine, 41(1), pp.263-306. Bihari, S., McEvoy, R.D., Matheson, E., Kim, S., Woodman, R.J. and Bersten, A.D., 2012. Factors affecting sleep quality of patients in intensive care unit.J Clin Sleep Med,8(3), pp.301-7. Carreira, S., Lavault, S., Pallanca, O., Mayaux, J., Delemazure, J., Arnulf, I., Similowski, T. and Demoule, A., 2015. Risk Factors and Prognostic Impact of Sleep Alterations in ICU Patients: A Prospective Observational Polysomnographic Study. InD16. PREDICTING RISK AND OUTCOMES FOR CRITICAL ILLNESS(pp. A5397-A5397). American Thoracic Society. Delaney, L.J., Haren, F. and Lopez, V., 2015. Sleeping on a problem: the impact of sleep disturbance on intensive care patients-a clinical review. Annals of intensive care,5(1), p.1. Dengler, V., Westphalen, K. and Koeppen, M., 2015. Disruption of circadian rhythms and sleep in critical illness and its impact on innate immunity. Current pharmaceutical design,21(24), pp.3469-3476. Elliott, R., McKinley, S., Cistulli, P. and Fien, M., 2013. Characterisation of sleep in intensive care using 24-hour polysomnography: an observational study.Critical Care,17(2), p.1. Kamdar, B.B., Needham, D.M. and Collop, N.A., 2012. Sleep deprivation in critical illness its role in physical and psychological recovery.Journal of intensive care medicine,27(2), pp.97-111. Luetz, A., Weiss, B., Penzel, T., Fietze, I., Glos, M., Wernecke, K.D., Bluemke, B., Dehn, A.M., Willemeit, T., Finke, A. and Spies, C., 2016. Feasibility of noise reduction by a modification in ICU environment.Physiological measurement,37(7), p.1041. Maidl, C.A., Leske, J.S. and Garcia, A.E., 2014. The influence of quiet time for patients in critical care.Clinical nursing research,23(5), pp.544-559. Matthews, E.E., 2011. Sleep disturbances and fatigue in critically ill patients. AACN advanced critical care,22(3), p.204. Pisani, M., 2015. Sleep in the intensive care unit: An oft-neglected key to health restoration.Heart Lung: The Journal of Acute and Critical Care, 44(2), p.87. Pisani, M.A., Friese, R.S., Gehlbach, B.K., Schwab, R.J., Weinhouse, G.L. and Jones, S.F., 2015. Sleep in the intensive care unit.American journal of respiratory and critical care medicine,191(7), pp.731-738. Pulak, L.M. and Jensen, L., 2016. Sleep in the Intensive Care Unit A Review.Journal of intensive care medicine,31(1), pp.14-23. Solverson, K. and Doig, C., 2014. An assessment of long-term sleep quality using actigraphy in survivors of critical illness.Critical Care,18(1), p.1. Su, C.P., Lai, H.L., Chang, E.T., Yiin, L.M., Perng, S.J. and Chen, P.W., 2013. A randomized controlled trial of the effects of listening to non-commercial music on quality of nocturnal sleep and relaxation indices in patients in medical intensive care unit.Journal of advanced nursing,69(6), pp.1377-1389.

Research Paper on Information Theory Essay Example

Research Paper on Information Theory Essay Information theory is the study of how the transfer of information can be done most effectively. The so-called statistical information theory was founded in the mid-1900s by Claude Shannon as part of a communication theory he developed, where the information theoretical concept of entropy plays a central role. In his theory, information measure is a measure of the increased determination degree you will be provided a variety of possible alternatives reduced to a smaller amount of options. This is measured as the logarithm of the ratio of the number of options before and after the reduction. This information measure is used inter alia in communication theory for calculating a channel capacity to transfer information and in coding theory for calculating the redundancy, and the degree of data compression possible. An example of areas in which the theory has gained much importance is telecommunications, computer technology, space technology, and biology. In most cases, this involves sending a complete message from a sender to a receiver. We will write a custom essay sample on Research Paper on Information Theory specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Research Paper on Information Theory specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Research Paper on Information Theory specifically for you FOR ONLY $16.38 $13.9/page Hire Writer The history of the information theory dates back to the 1940s, when Claude Elwood Shannon delivered significant contributions to the theory of data transmission and probability theory. He wondered how to ensure lossless data transmission channels via electronic (and optical today). This involves, in particular, to separate the data signals from the background noise. He was also trying to identify errors occurring during the transmission and correct it. The additional redundant (bearing no additional information) is necessary for the data to be sent and received, as well as to be verified or corrected. It is doubtful and was not claimed by Shannon that his 1948 study published A Mathematical Theory of Communication is of substantial importance for issues outside the communications technology. The concept of entropy used by him, associated with the thermodynamics is a formal analogy for a mathematical expression. In general can be defined as an engineering theory at a high abstraction level of information theory. It shows the trend for the scientific nature of art, which led to the formation of the engineering sciences. The reference point of Shannon’s theory is the accelerated development of electrical communications technology with its forms of telegraphy, telephony, radio, and television in the first half of the 20th Century. Before and next to Shannon there were Harry Nyquist, RVL Hartley, and Karl Kupfmuller who made important contributions to the theory of communication engineering. Norbert Wiener gave mathematical clarifications of relevance to the information theory, which helped its considerable publicity in the context of his reflections on cybernetics. If you need a good source of a highly urgent data you will need to look through free sample research papers on information theory, which will give a clear understanding of the issue. Are you looking for a top-notch custom research paper on Information Theory topics? Is confidentiality as important to you as the high quality of the product? Try our writing service at EssayLib.com! We can offer you professional assistance at affordable rates. Our experienced PhD and Master’s writers are ready to take into account your smallest demands. We guarantee you 100% authenticity of your paper and assure you of dead on time delivery. Proceed with the order form: Please, feel free to visit us at EssayLib.com and learn more about our service!

Critically evaluate the empirical support for Piagets theory of the stages of cognitive development The WritePass Journal

Critically evaluate the empirical support for Piagets theory of the stages of cognitive development Introduction Critically evaluate the empirical support for Piagets theory of the stages of cognitive development IntroductionReferences.Related Introduction Cognitive development overlooks the way children learn which Piaget (1896-1980) has had a great influence on. Piaget observed children throughout activities by interacting with them verbally and active listening. Piaget (1952) believed that children move through various stages in order to develop.   In order for children to develop they had to pass the four stages, Piaget (1952) names the stages as follows, sensorimotor, pre-operational, concrete operations and formal operational. However there have been many criticisms made by many theorists such as siegler, case, Lewis etc. In this essay I will be evaluating Piaget’s theory stages of development critically and coming to a conclusion. Piaget had a broad horizon on cognitive development. He felt that in order for a development to be passed a child creates schemas.   Piaget (1951) schemas are senses of experiences gained by a child from birth. A schema represents a child’s physical and mental capability, for an example a new born child begins to grasp, suck, blink etc. In order for a child to go through the next stage he should be intellectually and mentally fit. The first stage is the sensori-motor, this stage start from birth to 2 years. During this stage children begin to use their senses to create senses in order to develop such as see, hear, touch etc. Piaget (1952) did a task with children ages 8 to 12 months. He called this task â€Å"object permanence†, where he hid an attractive toy away from the child. The child responded by pushing objects away to find the toy. His findings showed him that children began to problem solve and have an understanding. The second stage is the preoperational stage. This stage occurs from 2 to 7 years. Piaget (1936) felt that children were not intellectually capable as their perception was dominating the way they saw situations. He believed that there were many limitations to the way children will think during this stage. The first limitation was egocentration where their own perceptions are being dominated by themselves. Piaget felt that young children are unable to express their views other than their own. In order to prove this he created a task called â€Å"three mountains task†. He came to the conclusion that children up to the age of seven could not identify what the doll could see as they would only answer what they could. The second limitation to this stage is centration which Piaget (1936) believed that children could only focus on one situation going on at one time ignoring others. Piaget (1952) created a task called â€Å"conservation†, this task involved objects which were t ransformed into different lengths, shapes etc. From this task he found out that children cannot focus or understand the concept of height while concentrating on the width. Robert Siegler (1981) replicated Piaget’s (1958) â€Å"Balance Beam† task to see why children could not solve conservation tasks. However Siegler (1981) believed that there are some strategies which children use in order to complete tasks. From his experiment he found that children below 5 could not use the first strategy but used strategy 2 and 3. The third stage is concrete operations. This stage starts from 7 to 12 years. This stage strongly focuses on reasoning. At this stage children are able to see and understand conservation tasks, size, height etc. There are 4 areas which consist within this stage conservation, classification, seriation. Conservation involves children to problem solve mathematically. Classification is for children 7 to 10, Piaget (1967) has said classification is what children in those ages should be able to understand and group objects relating them to their characteristics. Seriation is children able to put things in order for example in size, colour shape, numbers etc. This stage is allowing children to experiment with real objects in order to explore and problem solve. Piaget (1967) did an experiment for seriation with sticks where he found out that, children can put into series of order but make many mistakes.   He found that above 6 years can put in order in no time and correctly. The final stage is formal operational. This stage occurs in children around 11 according to Piaget (1958). At this stage children are thinking like adults where they can easily problems in their head with ease. Piaget (1958) constructed a task called â€Å"pendulum†. From this task he found out children do little mistakes but learn from them and all three stages pre- operational, concrete and formal operational are concurred and passed. Lewis (1981) did an experiment to show that not all teenagers at the age of 11 can think like adults, he found out that 50-60% teenagers used formal operations. This shows that not all teenagers including adults use this stage. However Bryant (1974) had criticised that tasks that Piaget (1936, 1951, 1952) did to prove his theory were very hard for children to do. Bryant (1974) proved that Piaget was a bit harsh in tasks with children so he constructed a task where he found out that children under 5 were able to do the tasks without any hesitation. This shows the Piaget (1952) did have a good theory but didn’t have the right task for the age group which the children didn’t answer correctly. Robbie case (1992, 1998) did an experiment to see that a child’s development is not just about schemas or to see their cognitive development, but it includes information processing, which is internal capacity of a child.   Cases’ (1992, 1998) theory shows that children have not got enough memory capacity to help them process and develop. So as children grow older they concur the stage. This essay has come to the conclusion that Piaget’s theory has a good source of empirical support to prove his theory. Piaget himself has underpinned numerous tasks such as 3 mountains task, pendulum, object permanence, in order prove his stages of development. However other theorists such as Bryant (1947), Case (1992), Lewis(1981) and Siegler (1981) have proved that there more to the stages of development for example case (1992) has showed that information processing has an equivalent contribution. Nevertheless Piaget had a great impact on cognitive development whereas as many theorists have been inspired. References. Berk. E. L. (2009). Child Development. United States: Library of Congress Cataloging-in- Publication Data pages, 22-24,224-257,278, 280-281, 293. Birch, A. (1997).   Developmental psychology.   London: Macmillean Press LTD, pages 65-80,111-113. Piaget, J. (1955). The Childs Construction of Reality, trans. London: M. Cook. Piaget, J. (1959). The Language and Thought of the Child. London: Routeledge and Kegan Paul. Siegler R. S. (1998). Childrens Thinking 3rd edition. New Jersey: Prentice Hall, pages 44, 66-67, 74-78.