The placebo effect means ________
a) all conditions in an experiment are the same
b) that there is no control group
c) the expectations of the participants influence their behavior
d) experimenter bias causes the subjects to act strangely
ANS: c
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According to Rogers, people behave defensively
a. to decrease anxiety. b. to protect their inaccurate self-concept. c. by ignoring, denying, and distorting reality. d. to do all of these.
According to Piaget, the stage of cognitive development that occurs between the ages of 8 and 11 years is
A. formal operational B. sensorimotor C. concrete operational D. preoperational
In general, information in short-term memory is retained for about ________
a. 2–3 seconds or less b. 30 seconds c. 5–20 minutes d. 30 minutes
Combination birth control pills contain ____
a. synthetic estrogen and natural progesterone b. synthetic estrogen and progestin c. natural estrogen and progestin d. synthetic estrogen and testosterone