One way to randomly assign students to experimental and control groups for a study of academic behaviors is to
a. flip a coin for each student to determine which group she or he will be assigned.
b. divide the group sitting in the front half of the room from the group sitting in the back.
c. ask volunteers for the experimental group to raise their hands.
d. do none of these.
B
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Research done by Cantor et al. (1985, 1987) uses the concept of "life-tasks" to study
lifespan changes among Americanundergraduates. This concept is useful in cross- cultural studies because a. it can be easily quantified and statistically analyzed. b. it is a scientifically-generated theme that is based on universal experiences. c. it is a self-generated theme based upon people's culture-specific experiences. d. it makes for a more eticapproach to collecting data.
Your textbook authors report that rigorously designed and controlled studies on the treatment of dissociative identity disorder
a. have only examined psychodynamic forms of treatment. b. are widespread. c. demonstrate the effectiveness of cognitive-behavior therapy. d. are nonexistent.