Which ability may take up to 2 months after birth to develop?
A) discriminating odors
B) seeing objects less than a foot away
C) voluntary motor movements
D) discriminating between different colors
Answer: D
Rationale: Color vision also appears to take some time to develop, but by at least 2 months of age infants begin discriminating different colors. The other abilities listed are present at birth or soon thereafter.
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How many parents are likely to report that their child experienced a night terror? a) 3 b) 10 c) 20 d) 50
Which of the following tactics can be helpful in a situation where the problem solver is more sure of what she doesn't want than of what she does?
a. creating subgoals c. hill-climbing b. functional fixedness d. the tactic of elimination