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The general factor of intelligence, or g factor, is a psychometric construct that summarizes the correlations observed between an individual's scores on various measures of cognitive abilities. It has been suggested that g is related to evolutionary life histories and the evolution of intelligence [ 131 ] as well as to social learning and ...
The Wechsler intelligence scales were originally developed from earlier intelligence scales by David Wechsler.David Wechsler, using the clinical and statistical skills he gained under Charles Spearman and as a World War I psychology examiner, crafted a series of intelligence tests.
The general factor of intelligence, or g factor, is a psychometric construct that summarizes the correlations observed between an individual's scores on various measures of cognitive abilities. First described in humans, the g factor has since been identified in a number of nonhuman species.
The testing of intelligence in birds is therefore usually based on studying responses to sensory stimuli. The corvids ( ravens , crows , jays , magpies , etc.) and psittacines ( parrots , macaws , and cockatoos ) are often considered the most intelligent birds, and are among the most intelligent animals in general.
Some challenges include defining intelligence so it has the same meaning across species, and operationalizing a measure that accurately compares mental ability across species and contexts. [ 41 ] Wolfgang Köhler 's research on the intelligence of apes is an example of research in this area, as is Stanley Coren's book, The Intelligence of Dogs ...
The Binet-Simon intelligence test was the model for future intelligence tests. [12] Many later intelligence tests [13] also combined different mental tests to arrive at a single score of intelligence. [12] Specific items from the Binet-Simon test were also be re-used for other intelligence tests. [12]
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. [1] 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 size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution.Measuring brain size and cranial capacity is relevant both to humans and other animals, and can be done by weight or volume via MRI scans, by skull volume, or by neuroimaging intelligence testing.