Which ONE of the following DOES NOT affect the validity of a research study?

Question

Quizplus · Accepted Answer

A high rate of response may increase the generalizability of the results and the statistical power of the study, but it does not directly affect the validity of the study. Non-random sampling and volunteer bias may introduce systematic errors and affect internal validity, while non-response may introduce sampling bias and affect external validity.

Which ONE of the Following DOES NOT Affect the Validity