James (1951), after observing naturally forming groups, concluded:
a. most groups include a leader.
b. the most common group size was 2 members.
c. groups are small if deliberately formed, but larger if they form spontaneously.
d. groups include, on average, 4.2 members.
b. the most common group size was 2 members.
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A psychologist whose primary goal is to help people reach their potential MOST likely follows the principles of
a. behaviorism. b. structuralism. c. psychoanalysis. d. humanism.
People who drink caffeinated beverages tend to experience increased alertness and psychomotor activity. This demonstrates a(n)
a. positive correlation. b. negative correlation. c. zero correlation d. unknown.
Which of the following is a slang name for methamphetamine?
a. crack b. ice c. grass d. ecstasy
Which of the following can be used to test relationships across categorical variables?
A. parametric tests B. frequency tests C. nonparametric tests D. bivariate tests