Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?
-You would like to know if the customers of your video store are satisfied. You hand a customer satisfaction questionnaire to every customer who comes into the store and ask them to fill it out
And place it in a box after they check out. The questionnaire asks customers to rate their satisfaction
On a scale of 1-10 with regard to the video selection and customer service.
A)Confounding variables
B)Setting may not encourage honest responses
C)Wording of the questions
D)Participation Bias
E)Selection Bias

Question

Quizplus · Accepted Answer

EThe biggest flaw in this study is participation bias (D) and selection bias (E). Participation bias occurs because not all customers may choose to fill out the questionnaire, possibly leading to overrepresentation of certain opinions (e.g., those who had a particularly positive or negative experience). Selection bias (E) is present because the study only includes customers who come into the store, excluding potential dissatisfied customers who no longer visit or those who prefer online services, thus not accurately representing the entire customer base.

Use the Guidelines to Evaluate the Study