Keeshaâs study involved deception. She was supposed to truthfully inform control subjects that they might not have time to solve a difficult puzzle and lie to experimental subjects that previous subjects completed the same puzzle with time to spare. Sadly, she has no talent for lying. While she was relaxed in the control condition, she was visibly anxious in the experimental condition. This systematic change in her emotional state a. made it easier to detect the effect of the IV and made subject responses in each condition more variable.
b. made subject responses in each condition more variable.
c. confounded her experiment.
d. made it easier to detect the effect of the IV.