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Spearman's two-factor theory proposes that intelligence has two components: general intelligence ("g") and specific ability ("s"). [6] To explain the differences in performance on different tasks, Spearman hypothesized that the "s" component was specific to a certain aspect of intelligence.
Personality Theory in Action: Handbook for the O-A Test Kit (1978) The Scientific use of Factor Analysis in Behavioral and Life Sciences (1978) Personality and Learning Theory: Vols. 1 & 2 (1979) Structured Personality-Learning Theory (1983) Human Motivation and the Dynamic Calculus (1985) Psychotherapy by Structured Learning Theory (1987)
The Cattell–Horn–Carroll theory is an integration of two previously established theoretical models of intelligence: the theory of fluid and crystallized intelligence (Gf-Gc) (Cattell, 1941; Horn 1965), and Carroll's three-stratum theory (1993), a hierarchical, three-stratum model of intelligence. Due to substantial similarities between the ...
Vernon's model about intelligence looks similar to the fluid-crystallized (Gf-Gc) intelligence theory because they both agree with g factor and have two more different dimensions on intelligence structure. In fact, Gf-Gc model has more broad factors such as special visualization (Gv), retrieval (Gr) or speed factor (Gs). [3]
This intelligence includes the capacity to understand underlying principles of some kind of causal system. [24] Logical reasoning is closely linked to fluid intelligence as well as to general intelligence (g factor). [25] This capacity is most often associated with convergent problem-solving but it also includes divergent thinking associated ...
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.
In general, the majority of changes in human intelligence occur at either the onset of development, during the critical period, or during old age (see neuroplasticity). Charles Spearman , who coined the general intelligence factor "g", described intelligence as one's ability to adapt to his environment with a set of useful skills including ...
The two-factor theory (also known as Herzberg's motivation-hygiene theory and dual-factor theory) states that there are certain factors in the workplace that cause job satisfaction while a separate set of factors cause dissatisfaction, all of which act independently of each other.