Which of the following represents the best operational definition of hunger?
a. that empty, gnawing feeling that you get in your stomach
b. not having eaten for 18 hours
c. the number of stomach growls reported in a ten-minute time interval
d. All of the options are equally good.
b
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The tendency for the sex drive to be shaped and altered by social, cultural, and situational factors refers to ____
a. erotic plasticity b. the Coolidge effect c. excitation transfer theory d. the broaden-and-build theory
One difficulty associated with family studies is that
A) they do not indicate whether symptoms “run in families.” B) it is not possible to separate the influence of genetics from that of the environment. C) the drop-out rate for family members tends to be high. D) it is difficult to determine the contribution of dominant versus recessive genes in family members.