"Don't Count Out Prostitutes" reports that "surveys for 15 years have shown that men have more sex partners than women, an illogical conclusion that has puzzled experts. The General Social Surveys, conducted by the University of Chicago, and the National Health and Social Life Survey, found that men were claiming up to 74% more partners than women."33
a. One explanation for the discrepancy would be that there is bias resulting from which one of these difficulties: complicated questions, sensitive questions, or hard-to-define concepts?
b. Is the variable of interest quantitative or categorical?