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[127] [128] These values are similar to the accepted variance in IQ explained by a similar single factor known as the general factor of intelligence in humans (40-50%). [129] However, results from a recent meta-analysis suggest that the average correlation between performance scores on various cognitive tasks is only 0.18. [ 130 ]
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 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 Royal Zoological Society of Scotland, a conservation charity that runs Edinburgh Zoo, said Wednesday that it was likely that Roxie, a 3-month-old red panda kit, “died due to stress caused by ...
A common test of intelligence is the detour test, where a glass barrier between the bird and an item such as food is used in the setup. Most mammals discover that the objective is reached by first going away from the target.
The Intelligence of Dogs: A Guide to the Thoughts, Emotions, and Inner Lives of Our Canine Companions is a 1994 book on dog intelligence by Stanley Coren, a professor of canine psychology at the University of British Columbia. [1] The book explains Coren's theories about the differences in intelligence between various breeds of dogs.
Encephalization quotient (EQ), encephalization level (EL), or just encephalization is a relative brain size measure that is defined as the ratio between observed and predicted brain mass for an animal of a given size, based on nonlinear regression on a range of reference species.
Staff at London Zoo got the measure of giant gorillas, plump penguins and skinny stick insects at the zoo’s annual animal weigh-in on Thursday. Zookeepers tempted squirrel monkeys onto scales ...