Dr. Pullman had an overwhelming number of freshmen sign up for his study once he offered extra credit. He was asking students to be hooked up to an EEG machine as well as to experience a low-voltage shock when they answered questions incorrectly. The participants had to return to the lab on three occasions in order to gain enough data to answer Dr. Pullman's hypotheses. After the first full round of participation, Dr. Pullman was told by the administration that he could not offer extra credit for participation in his experiment, so he had to remove the offer of extra credit. What should Dr. Pullman be concerned with?
A) testing effects and maturation
B) mortality
C) maturation
D) history

Question

Quizplus · Accepted Answer

Mortality, in the context of research, refers to the loss of participants from a study over time. Since Dr. Pullman had to remove the offer of extra credit, he should be concerned with the possibility that participants may drop out or choose not to return for subsequent sessions, affecting the continuity and integrity of his research data.

Dr Pullman Had an Overwhelming Number of Freshmen Sign Up