Two years after all of the inmates involved in this study had been released from the sentences during which they were treated, justice system records were examined to see if the treatments had any lasting effect on subsequent criminal recidivism.  Results were as follows:

Recidivism is significantly affected by all the treatments except the most general one (Treatment 9).  That is, eight of the nine workshops resulted in less chance of the inmate being reincarcerated within two years post release, one of the nine treatments appear to have affected the Severity of Offense score to some degree, and two of them resulted in any offences being of lesser severity.  This should be considered within following context:

(1) About 60% to 65% of the types of inmates treated at the O.C.I. tend to be convicted of further offenses within two years of their release if they serve their time at settings other than the O.C.I.  

(2) About 45% of the types of inmates treated at the O.C.I. tend to be convicted of further offenses within two years of their release (Wolfus & Stasiak, 1991) if they serve their sentences at the O.C.I. and receive only the basic/regular treatment program there.  

(3) The more treatment workshops attended, the fewer the number of inmates that recidivated, as shown in the following table.

Treatment ‘Amount’	Tx = 0	Tx > 0	Tx > 1	Tx > 2	Tx > 3	Tx > 4	Tx > 5
Number of Subjects	32	138	52	45	36	24	9
Recidivism Percentage	38	30	23	20	19	21	0

It seems reasonable to conclude that even the minimal amounts of the kinds of psychological treatment provided in these large-group workshops is a effective way to keeping people out of prison.