Correct option is A
Arthur Jensen's hierarchical model of cognitive abilities distinguishes Level I abilities (associative learning, rote memory, simple recall) from Level II abilities (abstract reasoning, conceptual thinking, problem-solving). These levels are best understood through (a) task complexity—Level I involves simple tasks while Level II involves complex cognitive operations; (b) socioeconomic differences—Jensen observed performance variations across SES groups in Level II tasks; and (c) racial differences—controversially, Jensen's work focused on racial group differences in these abilities, which sparked extensive debate. Geographical differences (d) were not a primary dimension in Jensen's original theoretical framework, making option 2 the most accurate representation of his controversial differential ability theory.
Information Booster:
● Level I abilities: Associative learning, rote memory, trial-and-error learning; less dependent on abstract reasoning; shows minimal group differences
● Level II abilities: Abstract reasoning, conceptual learning, problem-solving, generalization; culturally loaded; shows greater variance across demographic groups
● Jensen's controversial thesis: Proposed genetic explanations for observed racial IQ differences, leading to significant ethical and methodological criticism
● Dimensions of analysis: Jensen examined these abilities across task difficulty (a), socioeconomic status (b), and race (c) but not specifically geography (d)
● Criticism: Accused of cultural bias, ignoring environmental factors, and promoting scientific racism; his work remains highly contested