Question

When they apply for graduation, students at a certain university are required to complete a brief survey about whether they felt they received sufficient value for the tuition they paid. This methodology has inherent sampling bias, particularly if the university is trying to use this data to assess whether its student population are finding value for their tuition dollar. Please describe the types of individuals and/or responses that would likely be overrepresented in this sampling methodology.

Answer 1

Such a methodology for collecting data for whether students felt that they received sufficient value for the tuition they paid has coverage error. Such an error comes in play when all population components are not covered in the sample taken for survey.

This methodology over represents graduating candidates and doesn't consider the representation of first, second or third year candidates who haven't applied for graduation.

Such an activity should be conducted year on year for all students of the university to get a more comprehensive say of the students for their value for money proposition.That way it can remove the biasness from the sample.