When two or more groups are present in an experimental design, and in order to help avoid any systematic variation other than that caused by the independent variable on the behavior of interest, the researcher
a. randomly assigns participants to groups.
b. provides a different independent variable for each group.
c. measures a different dependent variable for each group.
d. assigns the same subjects to all groups.
A
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In couples therapy, treatment strategies target changes in:
A) both parties. B) the party causing the relationship conflict. C) the party with a diagnosed psychological disorder. D) the party suffering distress from the relationship.
Why it is a bad idea to draw conclusions from anecdotal evidence?
a. Such conclusions usually go against common sense. b. Anecdotes are reliable only if they come from experts, which they rarely do. c. Anecdotes are a single-blind technique, not a double-blind method. d. There is no way to know if the anecdote is true or if it will generalize to other people and situations.
A correlation between a person's behavior in one situation and that in another is called
cross-situational a. significance. b. validity. c. concordance. d. consistency. e. dependability.
Maccoby and Jacklin's conclusions about gender differences have been criticized because they
a. included some weak studies in their review. b. based their findings on only a few studies. c. did not examine gender differences in verbal and mathematical ability. d. did not consider the age of children in the studies.