Modification through modeling and reinforcement in leaderless groups.

Area of Science:

• Social Psychology
• Behavioral Psychology

Background:

• Understanding factors influencing individual verbal participation in group settings is crucial.
• Previous research explored reinforcement and modeling as separate techniques for behavior modification.

Purpose of the Study:

• To compare the efficacy of modeling plus reinforcement (MR), reinforcement alone (R), and demand characteristics (D) in increasing individual verbal output.
• To investigate the combined effect of observational learning and direct reinforcement on participation.

Main Methods:

• Seventy-two undergraduates were assigned to three-person groups across three conditions: MR, R, and D.
• Target persons (TPs) were identified based on low verbal output in an initial discussion.
• TPs in R and MR conditions received differential reinforcement for talking/silence; MR TPs also viewed a leadership modeling film.

Main Results:

• All conditions demonstrated an increase in verbal output.
• The modeling plus reinforcement (MR) condition showed significantly greater increases in verbal output compared to reinforcement alone (R) (p < .05).
• The MR condition was also significantly superior to the demand characteristics (D) condition (p < .01).

Conclusions:

• Combining modeling with reinforcement is a more effective strategy for enhancing individual verbal output in leaderless group discussions than either technique alone.
• The findings support Bandura's mediational theory of social learning and modeling.