If participants at the end of a longitudinal study tend to be those who were initially higher on some variable, then we have a case of
A) negative selective survival.
B) positive selective survival.
C) elective selective survival.
D) equally selective survival.

Question

Quizplus · Accepted Answer

Positive selective survival occurs when participants who are initially higher on some variable are more likely to continue participating in the study over time. This can lead to biased results, as the sample no longer represents the population at large.

If Participants at the End of a Longitudinal Study Tend