Which statement about gross-motor activity is true?
A. Exercise interferes with myelination of neural fibers.
B. Improving physical fitness delays cognitive development.
C. Brain structures supporting attention control are larger in better-fit than in poorly-fit children.
D. Exercise affects cognitive development but not executive function.
Answer: C
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According to K. Warner Schaie, what is the main cognitive developmental task of people in late adulthood?
A. assuming responsibility for one's shortcomings B. acquiring wisdom C. gaining a sense of achievement D. reintegration of personal interests
You are watching a pigeon pecking a key for food reinforcement. The pigeon pecks slowly right after food has been delivered, but gradually increases the rate of pecking as more time elapses. Based on what is known about the pattern of responding produced by various schedules of reinforcement, you should conclude that the reinforcement schedule that is in place for this pigeon is a:
a. fixed-ratio schedule b. fixed-interval schedule c. variable-ratio schedule d. variable-interval schedule
A characteristic that first shows up in the formal operations stage is __________
a) irreversibility. b) egocentrism. c) hypothetical thinking. d) logical thinking.
A student studied very hard in order to get a good grade. It worked. The good grade is an example of _____
a) positive reinforcement. b) punishment. c) negative reinforcement. d) partial reinforcement.