Overall, around 73% of the Narconon clients released from prison remained clean while on parole in these follow up surveys.

Evaluations of the Narconon® Program:

California Youth Authority: The effectiveness of the Narconon program in changing behavior was studied at the Youth Training School (YTS) of the California Youth Authority. This study was aimed at monitoring objective measures of behavior. Therefore, the evaluators tabulated the number of infractions, the number of restrictions, and the grade being achieved in trade school.

Narconon program clients were defined as those students who regularly attended meetings for one to four months. Controls had not participated in the Narconon program. 14 clients were compared to 27 randomly selected controls.

On average, the youth participating in the program had been at the Youth Training School for 5 months prior to program start. They continued at the school for 4 to 8 months. Therefore, the three measures were compared for the first 5 months versus the balance of the school program for both Narconon clients and controls. This comparison was designed to assess any change in behavior following the Narconon program.