The "Connecting to Research" Feature Indicates That One Critique of Professor

Multiple Choice

The "Connecting to Research" feature indicates that one critique of Professor Bem's recent study of extrasensory perception (ESP) is that ____.

A) he exposed undergraduates to erotic photographs without their consent
B) he changed his research methods in the middle of the experiment without explanation
C) he coerced students into participating by implying that he would lower their grades
D) he failed to compensate the students for their participation