When Challenge Reads as Acceptance: A Blinded Manipulation Check of Confirmation Theory’s Three Communication Styles in Young Adult Friendships

Confirmation theory distinguishes accepting, disconfirming, and accepting-plus-challenging communication, yet experimental tests have rarely verified that these styles are perceived as intended. In a three-condition experiment with 101 close friendship dyads, one friend per dyad enacted an assigned style during a 10-minute conversation about the partner’s personal goal. Two theory-trained coders blinded to condition classified each interaction. Coders recognized disconfirming interactions in 100% of dyads and accepting interactions in 86%, while accepting-plus-challenging interactions were recognized in 32%, with misclassifications drifting toward pure acceptance. Outcome analyses produced no condition effects. Findings identify boundary conditions for experimental tests of the theory.