Psych Research

As a general observation: if you are doing a study on the subject of keeping secrets and you're using a questionnaire to get people who have recently committed an infidelity, it would be a *lot* simpler and probably more accurate to add a question to your questionnaire about whether they've told their spouse about their infidelity and exclude the ones who have than it is to do what they apparently did, which was conduct an entirely separate study about whether people who've committed infidelities usually tell their partners about them and assume that the "roughly 80% keep it a secret" that you get holds true for your other sample size. Like, this is REALLY OBVIOUS bad research design.