Use the Guidelines to Evaluate the Study

Multiple Choice

Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?
-A researcher randomly selected 500 college students and asked "How many IQ points would you sacrifice to become better looking?". The following conclusion was published in the student
Newspaper "Students would sacrifice 18 IQ points to be better looking."

A) Selection bias
B) Variables are hard to define/measure
C) Confounding variables
D) Participation bias
E) The source