If a researcher conducts a dependent-groups experiment in which the participants experience all levels of the independent variable (IV), what type of random assignment should he use?
A. simple random assignment
B. stratified random assignment
C. matched random assignment
D. random assignment to order of conditions
Ans: D
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A weakness associated with longitudinal research is that experiences or events affecting one generation of participants may be very different than those affecting another generation. This is known as ______.
A. cohort effects B. research bias C. participant reactivity D. longitudinal variability
Which of the following best exemplifies a potential tragedy of the commons?
a. Everyone shows up at the party wearing the same pink shirt. b. Nobody cleans the lake after pollutants are accidentally spilled in it. c. Multiple shepherds allow their sheep to graze on a plot of land. d. A rainforest is cut down to build housing.
Action research was developed by ______.
a. Stanley Milgram b. Kurt Lewin c. Fritz Heider d. Leon Festinger
Alessandro wanted to help the victims of the recent earthquake in Italy. He anonymously established a fund to help the families of the victims. Even inside the banks no one knew who had done this
Alessandro did this without any desire for external or internal rewards. This is an example of A) pure altruism. B) intrinsic motivation. C) extrinsic motivation. D) philanthropic justification