Equivalent groups are expected to _____
a. be exactly the same in every way
b. not differ in any systematic way before being given the independent variable
c. represent different populations
d. have bimodal distributions
B
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When different aspects of jobs are considered, happiness with __________ shows a strong age-related gain.
A) pay B) the work itself C) promotions D) supervision.
What is TRUE about altruistic behavior? a. It is evident in every animal species
b. It can be completely explained in terms of genetic contributions. c. It is difficult to explain from an evolutionary/genetic point of view. d. It has a genetic component only in humans.
The brain area that is responsible for higher cognitive functions and most distinguishes us from animals is the:
a. thyroid c. pons b. cerebellum d. cortex
Medications for insomnia add about a. one-half hour to total sleep time, with few side effects
b. one-half hour to total sleep time, but are habit-forming and have additional significant side effects. c. two hours to total sleep time, with few side effects. d. two hours to total sleep time, but are habit-forming and have additional significant side effects.