One reason why preschool IQ test scores predict less well than later scores is that
A) preschool tests emphasize abstract problem-solving skills, whereas later tests focus on concrete knowledge.
B) IQ tests get increasingly easier for children as they get older.
C) with age, test items focus less on problem-solving skills and more on concrete knowledge.
D) with age, test items focus less on concrete knowledge and more on problem-solving skills.
D
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Assume that variables X and Y are significantly correlated; the concept of reverse causality tells us that
a. X causes Y but not the reverse. b. Y causes X but not the reverse. c. X might cause Y or Y might cause X. d. X causes Y and Y causes X.
According to Erikson's psychosocial theory, identity development is an extremely important aspect of
A) infancy and early childhood. B) middle childhood. C) early adulthood. D) adolescence.