All things being equal, compared to cross-sectional studies, longitudinal studies are more vulnerable to what threats to internal validity? (circle all that apply)
A) maturation
B) testing
C) regression toward the mean
D) selection
E) none of the above

Question

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The Answer of All things being equal, compared to cross-sectional studies, longitudinal studies are more vulnerable to what threats to internal validity? (circle all that apply)
A) maturation
B) testing
C) regression toward the mean
D) selection
E) none of the above

All Things Being Equal, Compared to Cross-Sectional Studies, Longitudinal Studies