The students who took the survey were concerned about social desirability.
Social desirability bias occurs when research participants provide responses they consider socially acceptable or desirable, rather than accurately representing their true beliefs, attitudes, or behaviors. . In this case, students may be reluctant to admit that they watch a lot of reality TV, believing that it may be viewed negatively by others, and may underestimate their actual reality TV viewing habits.
This leads us to underestimate the true percentage of students who watch more than four hours of reality TV per week.
It is important to note that social desirability bias can be a problem in any kind of survey or research study and can affect the validity and reliability of results. To minimize the effects of desirability bias, researchers can use a variety of techniques, including: Anonymous surveys, double-blind study designs (where neither the researcher nor the participants know the true purpose of the study), or indirect measures of sensitive behaviors or attitudes
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