What is a research design called when neither the participant nor the experimenter observing the participant knows which participants were given an active substance and which were given a placebo?
a. clinical trial
b. open trial
c. double-blind procedure
d. prospective cohort study
ANSWER:
c
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A. when the behavior is a voluntary response B. when the behavior is an involuntary reflex C. in the initial stages of operant conditioning D. only after the conditioning has taken place
A prehistoric woman exchanged her berries with another woman in return for hides to make clothing. This is an example of what?
A. social norms B. social exchange C. evolutionary perspective D. empathy-altruism
A severe anxiety reaction that takes place immediately, or very soon, after an extremely stressful event is known as ________ disorder
a. acute stress b. specific panic c. generalized anxiety d. posttraumatic stress
According to John Bowlby, which of the following theories provides the best explanation for the development of attachment?
a. evolutionary theory b. psychoanalytic theory c. drive-reduction theory d. behavioral theory, and especially reinforcement theory