ABSTRACT
This chapter examines that coordination in social interaction can be studied using judgment methods and slices of interaction rather than behavioral coding of lengthy interactions. The majority of studies on adaptation just reviewed use behavioral observations. Although the measure of behavioral adaptation provides an informative indicator of nonverbal responsiveness in social interaction, it is an expensive measure to obtain and calculate. The studies were undertaken to understand how to best measure coordination in human interaction via judgments of naive raters or through behavioral coding. Both judged and behavioral coordination also successfully predicted participants' evaluations of one another and their evaluations of the interaction. Judges also seem to use behavioral signs of speaker and hearer role in their ratings of coordination. Cappella analyses used only a few behaviors, none of them verbal ones, and ignored potentially important aspects of bodily movement and vocal affect.
