Interpersonal Deception Theory (IDT) postulates that interactive deception
differs from noninteractive deception due to combined influences of deceive
r goals and social skills, mutual influence processes between sender and re
ceiver, feedback, and interaction dynamics. An experiment tested hypotheses
that (a) interactive deception displays differ from truthful ones only at
the outset of interaction and approximate truthful displays over time, (b)
displays are moderated by deceiver social skills, (c) deceivers adapt to re
ceiver communication with reciprocal or compensatory displays, (d) low invo
lvement by receivers conveys negative feedback that instigates more behavio
ral adjustments by deceivers than does high involvement, and (e) receivers'
postinteraction judgments of deceivers are directly related to deceiver be
havioral displays. An experiment in which senders alternated between tellin
g the truth and deceiving, and partners varied their own level of involveme
nt, produced supportive results that have implications for the stability of
, and causal mechanisms underlying, deception displays and interpersonal Co
mmunication generally.