In Contrast to A(n)_____ Strategy,an _____ Strategy Does Not Involve

Multiple Choice

In contrast to a(n) _____ strategy,an _____ strategy does not involve the process of actively creating values on an independent variable,but rather involves measuring differences in values that naturally exist in the research participants.

A) correlational;experimental
B) observational;experimental
C) experimental;observational
D) experimental;cross-sectional