A major threat to the interpretation of results from a successive independent samples design is
A)noncomparable successive samples.
B)attrition from the study.
C)stratified random sampling from the population.
D)interviewer bias.

Question

Quizplus · Accepted Answer

Noncomparable successive samples can result in confounding variables and make it difficult to determine the true cause of any observed differences between groups. Attrition, stratified random sampling, and interviewer bias may also be threats to the interpretation of results, but they are not as directly related to the design of a successive independent samples study.

A Major Threat to the Interpretation of Results from a Successive