A study by Eaton, McKeen, and Campbell (2001) using motion recorders found that children are
a. least active in middle childhood.
b. more active in middle childhood than at any other age before or after.
c. at about the same activity level throughout childhood.
d. less active than adults.
Answer: b. more active in middle childhood than at any other age before or after.
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The Yerkes-Dodson Law says:
a) performance on a task is affected by levels of arousal. b) the more money you make the better your job will be. c) nausea from bad food causes a reluctance to eat that food again. d) performance on tests is better in the morning.
Many people fail to solve the "pieces of chain" problem or the "six matches" problem discussed in the text because they ______
a. use an incorrect algorithm b. develop conceptual blocks resulting from overly rigid assumptions c. use hill-climbing instead of creating subgoals d. use heuristic methods rather than trial and error