<p>Emotion socialization (ES) is the process through which others impact our emotional experiences. One important form of ES is contingent responding, in which a socialization agent (e.g., friend or parent) responds to a target’s emotional expression (e.g., of sadness, worry, or anger). Contingent responding is critical to study because receiving supportive responses from agents such as validation and empathy in times of distress has been linked with better adjustment in targets. However, one major limitation in prior work is reliance on measures that have limited evidence of psychometric properties. As such, the goal of this study was to investigate the factor structure and psychometric properties of a commonly used self-report measure (You and Your Friends Scale; YYF; Klimes-Dougan et al., <CitationRef CitationID="CR37">2014</CitationRef>) of friend-based contingent responding in emerging adults, a group for whom adaptive responses from friends are particularly important. Participants were <i>N</i> = 1,163 emerging adults (<i>M</i> age = 20.63 years; 38.6% men, 56.5% women). Confirmatory factor analysis revealed evidence for a three-factor solution (punishment, neglect, and magnify/reward) for sadness and worry, and a four-factor solution (punishment, neglect, magnify/reward, and magnify/override) for anger. We found evidence of invariance across gender identity. There was evidence of criterion-related validity across measures of emotion regulation and social support. Implications for our understanding of ES and continued use of the YYF are discussed.</p>