The study by Kasser and Sheldon, in which subjects wrote essays about death or about listening to music, included
A) a matching variable (income)
B) a subject variable
C) random assignment
D) repeated measures

Question

Quizplus · Accepted Answer

Random assignment is mentioned as the best answer since it is the only method mentioned that helps ensure that the two groups (death and music essays) are roughly equivalent at the beginning of the study, which is crucial for making any causal inferences between the groups. Matching is not mentioned as being used, nor is it clear if there was a subject variable. Repeated measures are not mentioned, as the subjects wrote only one essay each.

The Study by Kasser and Sheldon, in Which Subjects Wrote