It has been shown that telling participants they are free to decline to participate without penalty
A) results in fewer people agreeing to participate
B) makes the results less generalizable.
C) induces participants to ask for a larger reward for participating.
D) can substantially alter the results obtained in some experiments.

Question

Quizplus · Accepted Answer

Informing participants that they are free to decline participation without penalty can lead to self-selection bias, where the characteristics of those who choose to participate may differ significantly from those who do not. This can substantially alter the results obtained, as the sample may not be representative of the general population.

It Has Been Shown That Telling Participants They Are Free