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?



A.the puzzle that each subject tries to solve

B.the time that it takes to solve the puzzle

C,the number of mistakes the subjects make solving the puzzle

D.what each group is told about the difficulty of the puzzle prior to solving it

Explanation / Answer

D.what each group is told about the difficulty of the puzzle prior to solving it (Independent variable is anything that the research would manipulate to see its effect on the dependent variable. Here the researcher said that one is very difficult and the other is moderate)

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