This participation training (PT) study sought to determine whether microlabs (short training sessions) and instrumented (data based) exercises reduced the time needed to learn desired PT verbal behaviors; whether participant satisfaction is affected significantly; and whether any unusual problems in content, procedure, or group process arise from the two techniques. Three treatments--a microlab inserted into the usual PT design, PT with instrumented exercises, and the usual PT design only--were used. Thirty adults engaged in a missionary orientation program were divided into three treatment groups. These were among the conclusions reached: (1) microlab activities and instrumented exercises can promote social learning; (2) microlab activities encourage participants to examine the social and emotional aspects of group life and to feel a strong group commitment; (3) demonstrating group concepts through instrumented exercises does not assure immediate behavioral application; (4) PT is especially useful in developing work group skills; (5) the emergence of desired PT outcomes is not highly associated with participant satisfaction. (LY)