A Team of Researchers Is Using Surveys to Study College

Multiple Choice

A team of researchers is using surveys to study college students' feelings about the dining hall on campus.In order to ensure reliability,the researchers employ a test-retest method.One potential problem with a test-retest might be that

A) students might decide not to participate in the survey,which would result in the surveys that were collected being considered invalid.
B) students might not understand the test-retest method and therefore the researchers could not complete the surveys.
C) it is very difficult to successfully employ a test-retest method on a college campus.
D) the dining hall could have changed its food in between the two survey points and therefore students' attitudes about the dining hall may have changed.