A wide variety of potential expressions of a genetic trait, depending on environmental opportunities and constraints, is called ______.
A. canalization
B. behavioral genetics
C. range of reaction
D. gene-environment correlation
Answer: C
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Unlike early-maturing girls, early-maturing boys tend to be disadvantaged
Indicate whether this statement is true or false.
Your niece seems to eat candy quite a bit between meals. Your sister and brother-in-law are worried about this and ask you what you think. What would you tell them?
They are right to be worried, because she is very likely to get cavities. || Sugar and starches are good for growing children. || Candy helps soothe her and is linked to positive emotional development. || Most children today eat like this and it is not likely to be a problem. || || ||
Based on research presented in the text, the more men were exposed to male-directed magazines, such as Maxim, Details, and Men's Fitness, the more they valued
a. themselves. b. dependence on others. c. thinness in women. d. interdependence.
A firm wants to evaluate a leadership program. Upper-level managers are asked to evaluate the leadership of their mid-level managers and then pair up managers having about the same levels. One member of each pair is assigned to the program which consists of extreme physical exertion such as mountain climbing. Although only half of those selected completed the program, one year later those mangers
completing the program were compared on leadership ability to their matched pairs who had not taken the program. It was found that those completing the program were rated higher than their matched pairs. What threat to internal validity might be operating here? A) selection B) history C) mortality D) statistical regression