“…The following study analyzes the natural language of competitive negotiations to explore the three primary components of engagement in interpersonal conversations: Emotional engagement (references to positive and negative emotions), social engagement (references to one's conversation partner), and task engagement (references to the negotiation issues and options). In agreement with Donohue () and a number of researchers outside of the negotiation literature (e.g., Danescu‐Niculescu‐Mizil, Lee, Pang, & Kleinberg, in press; Fiedler, ; Michel et al., ; Pennebaker, Mehl, & Niederhoffer, ; Sanford, ; Weintraub, ), we argue that language is a psychometrically valid data source in itself, independent of questionnaire data or observer reports. Although each of those data sources is critical in the behavioral and social sciences, records of behavior throughout an interaction have primacy over self‐reports insofar as they are real‐time and not retrospective measures (Donohue, ).…”