A disturbance variable increases sampling error by increasing variability within groups.

Question

Quizplus · Accepted Answer

A disturbance variable can introduce additional sources of variability within groups, which can result in increased sampling error. This is because the disturbance variable makes it more difficult to distinguish true group differences from random variation, making it more likely that observed differences are due to chance rather than the variables being studied.

A Disturbance Variable Increases Sampling Error by Increasing Variability Within