Family studies can indicate whether a trait runs in families, but they cannot provide conclusive evidence that a trait is influenced by heredity because

a. there are too many dependent variables in family studies.
b. random assignment is impossible in family studies.
c. there are no independent variables in family studies.
d. family members share not only genes but also similar environments.


D

Psychology

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Research suggests that pursuing self-esteem as an end in itself tends to ____

a. increase people's independence b. improve people's relationships c. facilitate learning d. lead to a variety of negative consequences

Psychology

Pavlov presented a sound followed by meat in his experiments. Gradually, the sound came to elicit salivation. The salivation to the meat in this experiment was the ____.

A. unconditioned stimulus B. unconditioned response C. conditioned stimulus D. conditioned response

Psychology

Cleo's teachers say that she "can't sit still" and that she often stands up and runs around the classroom during lessons. Cleo is most clearly demonstrating

A. hyperactivity. B. inattention. C. ritualistic behavior. D. antisocial behavior.

Psychology

Which of the following best illustrates the notion of propensity for deviance?

A. sufficient motivation B. sufficient personality C. sufficient opportunity D. sufficient justification

Psychology