A(n) _______________ allows a researcher to control and manipulate the situation being studied
a. survey
b. experiment
c. case study
d. correlational study
Answer: b
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Units of heredity that maintain their structural identity from one generation to another are known as ____
a. enzymes b. mutations c. nucleic acids d. genes
Ebbinghaus invented nonsense material to free his research material from the influence of:
a. experimenter bias. b. prior learning. c. neurophysiological delay. d. Introspection.
Data indicate that the most common type of mental disorders are:
a. anxiety disorders c. mood disorders b. psychosexual disorders d. personality disorders
Josh knew perfectly well that some of his friends were people adults approved of, and others were considered troublemakers by adults as well as by most people in school. Josh accepted all of his friends, and they all influenced him. In terms of an adolescent’s social and emotional development, the influence of friends
a. is only positive. b. can be both positive and negative. c. is irrelevant. d. is only negative.