________ is when participants drop out of a study.
A) Assessment bias
B) Attrition
C) Performance bias
D) Blinding

Question

Quizplus · Accepted Answer

Attrition is when participants drop out of a study, which can lead to biased results if the participants who drop out are systematically different from those who continue to participate. Assessment bias refers to errors in measuring outcomes, performance bias occurs when groups are systematically different in terms of non-intervention related factors that could explain study outcomes, and blinding refers to the practice of keeping participants or outcome assessors unaware of which group they are in (i.e., treatment group or control group) to avoid bias.

________ Is When Participants Drop Out of a Study