Using brief habit reversal and an interdependent group contingency to reduce public-speaking speech disfluencies

This study replicated and extended previous research on the effectiveness of brief habit reversal, consisting of awareness training and competing response training (silent pause) in reducing the rate of speech disfluencies during public speaking. Nine university students, divided into 3 groups, delivered short speeches on a novel topic. Brief habit reversal combined with an interdependent group contingency resulted in a meaningful reduction in speech disfluencies with only 1 group requiring booster sessions. Relative to baseline, competing responses increased for all participants but only remained high for 1 participant following training. Reductions in speech disfluencies maintained during follow-up when participants presented in front of a small audience.

Group Procedures for Decreasing Problem Behavior Displayed by Detained Adolescents

As one component of providing treatment in a residential facility, Brogan, Falligant, and Rapp decreased problem behavior by two groups of detained adolescents using group contingency procedures. The current series of studies evaluated the extent to which group procedures could be extended to other contexts within a residential facility. In Study 1, fixed-time delivery of attention by dormitory staff decreased problem behavior displayed by a group of five to 11 detained adolescents during free periods. In Study 2, rules from a therapist plus contingencies for following those rules increased appropriate line walking during specific transition periods. Subsequently, rules alone maintained appropriate line walking, however, direct training was required to produce appropriate line walking during other transitions. Measures of social validity indicated the procedures and outcomes in both studies were acceptable to facility personnel.