When secondary variance is allowed to occur in experimental research,
A) the design is assumed to have internal validity
B) the design is assumed to have external validity
C) the design is assumed to be tightly controlled
D) the design is assumed to be "flawed"

Question

Quizplus · Accepted Answer

Allowing secondary variance in experimental research typically indicates a lack of control over extraneous variables, which can introduce errors or "flaws" into the experimental design, potentially affecting the validity of the results.

When Secondary Variance Is Allowed to Occur in Experimental Research