A study which produces large amounts of secondary variance will probably be found to be extremely low in
A) sampling error
B) Type 2 error
C) random error
D) internal validity

Question

Quizplus · Accepted Answer

Secondary variance refers to variability in the study outcomes that cannot be attributed to the variables being studied. This undermines the study's ability to establish a cause-and-effect relationship between variables, thereby reducing its internal validity. Internal validity is the extent to which a study can demonstrate that a causal relationship exists between the independent and dependent variables, excluding the possibility that observed effects are due to other variables. High secondary variance suggests that there are other, uncontrolled factors affecting the outcomes, which compromises the study's internal validity.

A Study Which Produces Large Amounts of Secondary Variance Will