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Lloyd Humphreys
Lloyd Girton Humphreys (December 12, 1913 – September 7, 2003) was an American differential psychologist and methodologist who focused on assessing individual differences in human behavior. His work is among the most widely cited in intelligence research, and he received awards in this field.Lubinski D (2004)Lloyd G. Humphreys: Quintessential Scientist (1913–2003) (PDF ''Intelligence'', 32, 221–226. Early life and education Born in Lorane, Oregon, Humphreys earned his undergraduate degree at the University of Oregon in 1935, a master's from Indiana University in 1936, where he first learned about factor analysis, then received his doctorate at Stanford in 1938, studying under Ernest Hilgard. His dissertation on the partial reinforcement effect (or the Humphreys effect), is considered a classic in the field. Career His first position was at Northwestern University (1939–1945). He was a Carnegie Fellow in Anthropology (1941–1942, Columbia University) during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychology
Psychology is the scientific study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both consciousness, conscious and Unconscious mind, unconscious phenomena, and mental processes such as thoughts, feelings, and motivation, motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the Natural science, natural and social sciences. Biological psychologists seek an understanding of the Emergence, emergent properties of brains, linking the discipline to neuroscience. As social scientists, psychologists aim to understand the behavior of individuals and groups.Hockenbury & Hockenbury. Psychology. Worth Publishers, 2010. A professional practitioner or researcher involved in the discipline is called a psychologist. Some psychologists can also be classified as Behavioural sciences, behavioral or Cognitive science, cognitive scientists. Some psychologists attempt to understand the role of mental functions in i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia University
Columbia University in the City of New York, commonly referred to as Columbia University, is a Private university, private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church (Manhattan), Trinity Church in Manhattan, it is the oldest institution of higher education in New York (state), New York and the fifth-First university in the United States, oldest in the United States. Columbia was established as a Colonial colleges, colonial college by royal charter under George II of Great Britain. It was renamed Columbia College (New York), Columbia College in 1784 following the American Revolution, and in 1787 was placed under Trustees of Columbia University in the City of New York, a private board of trustees headed by former students Alexander Hamilton and John Jay. In 1896, the campus was moved to its current location in Morningside Heights and renamed Columbia University. Columbia is organized into twenty schoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelligence
Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as the ability to perceive or infer information and to retain it as knowledge to be applied to adaptive behaviors within an environment or context. The term rose to prominence during the early 1900s. Most psychologists believe that intelligence can be divided into various domains or competencies. Intelligence has been long-studied in humans, and across numerous disciplines. It has also been observed in the cognition of non-human animals. Some researchers have suggested that plants exhibit forms of intelligence, though this remains controversial. Etymology The word '' intelligence'' derives from the Latin nouns '' intelligentia'' or '' intellēctus'', which in turn stem from the verb '' intelligere'', to comprehend or perceive. In the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linda Gottfredson
Linda Susanne Gottfredson (née Howarth; born 1947) is an American psychologist and writer. She is professor emerita of educational psychology at the University of Delaware and co-director of the Delaware- Johns Hopkins Project for the Study of Intelligence and Society. She is best known for writing the 1994 letter " Mainstream Science on Intelligence", which was published in the '' Wall Street Journal'' in defense of Richard Herrnstein and Charles Murray's controversial book '' The Bell Curve'' (1994). She is on the boards of the International Society for the Study of Individual Differences, the International Society for Intelligence Research, and the editorial boards of the academic journals '' Intelligence'', '' Learning and Individual Differences'', and '' Society''. Life and education Gottfredson was born in San Francisco in 1947. She is a third generation university faculty member. Her father, Jack A. Howarth (died 2006), was a faculty member at U.C. Davis School of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Street Journal
''The Wall Street Journal'' (''WSJ''), also referred to simply as the ''Journal,'' is an American newspaper based in New York City. The newspaper provides extensive coverage of news, especially business and finance. It operates on a subscription model, requiring readers to pay for access to most of its articles and content. The ''Journal'' is published six days a week by Dow Jones & Company, a division of News Corp. As of 2023, ''The'' ''Wall Street Journal'' is the largest newspaper in the United States by print circulation, with 609,650 print subscribers. It has 3.17 million digital subscribers, the second-most in the nation after ''The New York Times''. The newspaper is one of the United States' newspapers of record. The first issue of the newspaper was published on July 8, 1889. The editorial page of the ''Journal'' is typically center-right in its positions. The newspaper has won 39 Pulitzer Prizes. History Founding and 19th century A predecessor to ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mainstream Science On Intelligence
"Mainstream Science on Intelligence" was a public statement issued by a group of researchers led by psychologist Linda Gottfredson. It was published originally in ''The Wall Street Journal'' on December 13, 1994, as a response to criticism of the book ''The Bell Curve'' by Richard Herrnstein and Charles Murray, which appeared earlier the same year. The statement defended Herrnstein and Murray's controversial claims about race and intelligence, including the claim that average intelligence quotient (IQ) differences between racial and ethnic groups may be at least partly genetic in origin. This view is now considered discredited by mainstream science. The statement was drafted by Gottfredsen, a professor of educational psychology at the University of Delaware. It was sent to 131 researchers whom Gottfredsen described as "experts in intelligence and allied fields". Of these, 52 signed the statement, 48 returned the request with an explicit refusal to sign, and 31 ignored the request ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneer Fund
The Pioneer Fund is an American non-profit foundation established in 1937 "to advance the scientific study of heredity and human differences". The organization has been described as racist and white supremacist in nature. The Southern Poverty Law Center classifies the Pioneer Fund as a hate group. One of its first projects was to fund the distribution in US churches and schools of '' Erbkrank'', a Nazi propaganda film about eugenics. From 2002 until his death in October 2012, the Pioneer Fund was headed by psychology professor J. Philippe Rushton, who was succeeded by Richard Lynn. After Lynn's death in 2023, much of the activity of the Pioneer Fund shifted to the Human Diversity Foundation. Two of the best known studies funded by Pioneer Fund are the Minnesota Study of Twins Reared Apart and the Texas Adoption Project, which studied the similarities and differences of identical twins and other children adopted into non-biological families. Research backed by the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Bell Curve
''The Bell Curve: Intelligence and Class Structure in American Life'' is a 1994 book by the psychologist Richard J. Herrnstein and the political scientist Charles Murray in which the authors argue that human intelligence is substantially influenced by both inherited and environmental factors and that it is a better predictor of many personal outcomes, including financial income, job performance, birth out of wedlock, and involvement in crime, than is an individual's parental socioeconomic status. They also argue that those with high intelligence, the "cognitive elite", are becoming separated from those of average and below-average intelligence, and that this separation is a source of social division within the United States. The book has been, and remains, highly controversial, especially where the authors discussed purported connections between race and intelligence and suggested policy implications based on these purported connections. The authors claimed that average intell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelligence Test
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months. The resulting fraction ( quotient) was multiplied by 100 to obtain the IQ score. For modern IQ tests, the raw score is transformed to a normal distribution with mean 100 and standard deviation 15. This results in approximately two-thirds of the population scoring between IQ 85 and IQ 115 and about 2 percent each above 130 and below 70. Scores from intelligence tests are estimates of intelligence. Unlike, for example, distance and mass, a concrete measure of intelligence cannot be achieved given the abstract nature of the concept of "intelligence". IQ scores have been shown to be associated with such factors as nutrition, parental so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Psychological Association
The American Psychological Association (APA) is the main professional organization of psychologists in the United States, and the largest psychological association in the world. It has over 170,000 members, including scientists, educators, clinicians, consultants, and students. It has 54 divisions, which function as interest groups for different subspecialties of psychology or topical areas. The APA has an annual budget of nearly $135 million. Profile The APA has task forces that issue policy statements on various matters of social importance, including abortion, human rights, the welfare of detainees, human trafficking, the rights of the Mental disorder, mentally ill, IQ testing, sexual orientation change efforts, and gender equality. Governance APA is a corporation chartered in Washington, D.C. APA's bylaws describe structural components that serve as a system of checks and balances to ensure democratic process. The organizational entities include: * APA President. The APA pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Talent
Project Talent is a national longitudinal study that first surveyed over 440,000 American high school students in 1960. At the time, it was the largest and most comprehensive study of high school students ever conducted in the United States. Designed by American Institutes for Research founder John C. Flanagan, Project Talent was intended as “the first scientifically planned national inventory of human talents.” Students from 1,353 schools across the country participated in two full to four days of testing. Fifty years later, the data is still widely used in multiple fields of study and follow-up studies are underway with original participants. Origins and Historical Context The study was developed by American Institutes for Research, a nonprofit, nonpartisan research institute, and several other organizations, including the University of Pittsburgh, through a Cooperative Agreement. It was funded by the United States Office of Education. It began as a national survey of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sample Size
Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data, and the need for it to offer sufficient statistical power. In complex studies, different sample sizes may be allocated, such as in stratified surveys or experimental designs with multiple treatment groups. In a census, data is sought for an entire population, hence the intended sample size is equal to the population. In experimental design, where a study may be divided into different treatment groups, there may be different sample sizes for each group. Sample sizes may be chosen in several ways: *using experience – small samples, though sometimes unavoidable, can result in wid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
