Intelligence involves the ability to think, solve problems, analyze situations, and understand social values, customs, and norms. Intelligence is a general mental capability that involves the ability to reason, plan, think abstractly, comprehend ideas and language, and learn. Intellectual ability involves comprehension, understanding, and learning…

Heritability is defined as the proportion of a manifested trait's varience that is due to genetic variation. Sixty-five pairs of twins were employed to investigate the heritability of: (1) short term memory (Jensen's Level 1), operationalized using of modified "digit span" test; (2) the general intellective factor (Jensen's Level II),…

Noun-pair learning in twelfth graders was assessed as a function of ethnicity, I.Q., and instructional conditions. Learners instructed to generate sentences performed better than control group learners. The relationship between instructional conditions and I.Q. was significant, but ethnicity was not. Spontaneous elaboration is discussed as a…