Longitudinal survey design may allow a researcher to provide some evidence of
A) Control over rival explanations
B) Covariance
C) Time order
D) Both b and c

Question

Quizplus · Accepted Answer

Longitudinal survey design can help establish covariance by showing that changes in one variable are associated with changes in another over time, and it can help establish time order by observing the sequence of events or changes.

Longitudinal Survey Design May Allow a Researcher to Provide Some