Using 40 naturally occurring conversations (20 same sex and 20 mixed sex), the purpose of this study was to examine differences among speech behavior-social evaluation relationships as a function of whether the evaluator's perspectiw was that of a participant or an observer and, if the latter, whether the presentational medium involwd an audiovisual, audio-only, or transcriptual recording. Speech behaviors examined included conversants' speech rates, turn durations, interruptive speakovers, and vocal back-channels and the degree to which they performed these speech behaviors similar to those of their partners. Social evaluative dimensions examined included communication satisfaction, communicatiw competence, sociointellectual status, aesthetic quality, and dynamism. Severalfindings were noteworthy. First, participants viewed their conuersational partners most favorably and transcript readers viewed them least favorably. Second, there were few significant correlations between social evaluative judgments across different perceivers' perspectives. Third, while the perceivers' social judgments of conversants were often related to the conuersants' speech behaviors, there was little consistency across perceivers'perspectives regarding which speech behaviors were predictive of these judgments. Specifically, the Richard L. Street, Jr. (Ph.D., University of Texas, 1980) is an associate professor of speech communication at Texas Tech University, Lubbock, TX. Anthony Mulac (Ph.D., University of Michigan, 1969) is a professor of communication at the University of California, Santahrbara, CA. John M. Wiemann (Ph.D., Purdue University, 1975) is an associate professor of communication at