Spearman (1972) believed that an individuals performance on a test of intellectual ability is determined by two factors : the g factor which is a general factor and the s factor which is a factor specific to a particular test.
He believed the g factor involved three principles of cognition: 1. apprehension of experience, 2.eduction of relations and 3. eduction of correlates.
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Youths creating fire with Intelligence
Sex Differences In Intelligence
How to separate the ladies from the men.........?
With Piaget's Water Level Test
Task: Look at the glass of water this strange looking alien man is drinking from. Where would you say the top of the water is if the glass is half full?
This is Piaget's Water Level test. If you are a man you probably drew the line horizontally across the glass. If you are a woman you probably drew the line parallel to the direction in which the water glass is tipped. The correct line would be a horizontal line. Men tend to be better at this task than women (Halpern, 1995).This illustrates one of the most consistent sex differences in cognitive ability.
One explanation for the Water Level Test is that men and boys are better at spatial ability than women. Spatial ability involves using skills in representing, transforming, generating and recalling symbolic, nonlinguistic information.