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Question: The measurements in this study were self-reported by the participants. Explain the extent to which you think this may systematically have caused the measurements of hangover severity of men or women or both to be biased, and whether that may have affected the conclusions of the study in any way. "Research shows women harder hit by hangovers" and Original Source 2, "Development and initial validation of the Hangover Symptoms Scale: Prevalence and correlates of hangover symptoms in college students" on the CD accompanying the book.

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