This meta-analytic integration examines the influence of various factors on self-other discrepancies (SODs) in college drinking norms. The study evaluates 23 studies, involving 53,825 participants, to assess the impact of norm type (descriptive or injunctive), gender, reference group, question specificity, and campus size on SODs. The results show that SODs are more pronounced for injunctive norms, with women reporting larger discrepancies than men. Distal reference groups, non-specific questions, and smaller campuses also contribute to larger SODs. The findings suggest that the assessment methods, personal variables, and campus context significantly affect the magnitude of SODs, highlighting the need for tailored approaches in social norms interventions to maximize their effectiveness.This meta-analytic integration examines the influence of various factors on self-other discrepancies (SODs) in college drinking norms. The study evaluates 23 studies, involving 53,825 participants, to assess the impact of norm type (descriptive or injunctive), gender, reference group, question specificity, and campus size on SODs. The results show that SODs are more pronounced for injunctive norms, with women reporting larger discrepancies than men. Distal reference groups, non-specific questions, and smaller campuses also contribute to larger SODs. The findings suggest that the assessment methods, personal variables, and campus context significantly affect the magnitude of SODs, highlighting the need for tailored approaches in social norms interventions to maximize their effectiveness.