When Morrison et al., compared the cognitive performance of children who had just made the age cutoff for entering first grade with children who had just missed the cutoff and spent the year in kindergarten, they found
a. no difference in cognitive skills for these two groups.
b. higher performance on language, but not math, for the first-grade group.
c. higher performance on math, but not language, for the first-grade group.
d. higher performance in both math and language for the first-grade group.
D
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Jodi is perplexed by the fact that her six month old daughter Alexis picks up her food with either her right or left hand. When will Alexis begin to show a preference for using one particular hand when grasping?
A. 7 to 11 months B. 13 to 17 months C. 19 to 23 months D. 25 to 29 months
Nine-month-old Keisha watches her ball bounce down the stairs. As she approaches the top of the stairs, she backs up and hesitates to go down the stairs. This indicates that Keisha has developed ____.?
a. ?perceptual constancies b. ?binocular vision c. ?depth perception d. ?proximity
According to the text, Freud’s most original contribution to psychology was the:
a. concept of infantile sexuality b. analysis of dreams c. concept of the unconscious mind d. synthesizing of many known facts into a comprehensive theory of personality
The fact that gender differences in intellectual abilities vary by culture, age, and race suggests that ____
a. ?males have a higher level of inherited “g” b. ?the observed gender differences may be due to the environment c. ?females generally outperform males on most tests of intelligence d. ?genetics play a strong role in the observed differences