Loss of subjects is most serious in ____ surveys.
A) cohort
B) cross-sectional
C) panel
D) trend

Question

Quizplus · Accepted Answer

Panel surveys follow the same group of individuals over time, so any loss of subjects can significantly affect the validity of the study. Cohort surveys also follow a specific group over time, but the loss of subjects may not be as significant because other cohorts can be added. Cross-sectional and trend surveys involve sampling from different groups at one point in time, so the loss of subjects may not be as impactful.

Loss of Subjects Is Most Serious in ____ Surveys