When a significant number of subjects drop out of a study,there is a(n)____ threat.
A)history
B)mortality
C)instrumentation
D)regression

Question

Quizplus · Accepted Answer

Mortality threat refers to the loss of participants during a study. This can occur because participants move away, become ill, or drop out of the study for other reasons. Mortality threat can be a problem if the loss of participants is not random, but instead based on some systematic factor that also affects the study's outcome. This can lead to biased results and limit the generalizability of the study findings.

When a Significant Number of Subjects Drop Out of a Study,there