Although the effects of interpersonal expectations on conversation behavior and interpersonal perception have been widely researched, much of this work has focused on how expectancies affect behavior and perception in audio/voice or face-to-face communication. The current research tested 100 mixed-sex dyads to compare behavioral and perceptual effects of expectancies across two different types of mediated communication channels: computer-mediated communication (CMC) and audio/voice communication. In addition, this research examined the role of participants' self-efficacy to see if it affected expectancy outcomes. Variations in expectancy malleability, communication channel, and communication self-efficacy were found to impact behavioral and perceptual effects in dyadic interaction. The results are discussed in light of existing theories of CMC and the expectancy effects paradigm.
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