Jana is investigating the effects of expectation of task difficulty on task perf

Question

Jana is investigating the effects of expectation of task difficulty on task performance. She has randomly assigned her subjects to one of two groups. In group one, the subjects are told that the puzzle that they are going to solve is very difficult. In group two, the subjects are told that the puzzle is only of moderate difficulty. Jana has decided to time the subjects to find if there is a significant difference in the time that it takes the members of each group to solve the puzzle. In this study, what is the independent variable?

Explanation / Answer

Task difficulty is the independent variable. (Independent variable is anything that the researcher can manipulate. Here the experimenter has said that one is very difficult and the other is moderately difficult)

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