You Can Exclude Study Participants for All of These Reasons

Multiple Choice

You can exclude study participants for all of these reasons EXCEPT:

A) on the basis of researcher judgment that other individuals would benefit more from participation.
B) on the basis of previous research indicating that certain participants are more appropriate.
C) on the basis of medical history that it may be medically unhealthy, damaging, or problematic for them to participate in the study.
D) on the basis of researcher judgment that the study will obtain greater significance if those individuals are prohibited from participating.