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Even though most of us lie from time to time, it is really quite surprising how little is known about such behaviors. Through controlled observation and laboratory testing, this study attempted to determine what verbal and nonverbal behaviors were characteristic of intentionally deceptive communicators. Seventy-six videotaped interviews provided a data base for the analysis of 32 dependent measures. In addition to analyses of specific behavioral differences between deceivers and nondeceivers, the authors provide a conceptual framework for the study of deception—predicting that deceivers will exhibit significantly more uncertainty, vagueness, nervousness, reticence, dependence, and unpleasantness than nondeceivers.
Knapp et al. (Sun,) studied this question.