In the first 10 years of the program, 1233 students graduated, 421 have been released. Two people have returned to prison. The GRIP program’s recidivism rate of 0.2% reflects the transformative elements and saves California a substantial amount of money, considering it costs $81,000 per year to incarcerate a human being. We’re saving over $34.1 million dollars in taxpayers’ money each  year, while improving public safety and preventing re-victimization.

The following documents chronicle several evidence-based  studies:

A team of professors at the Catholic University of Milan, Italy, conducted a clinical psycho-social study and the results can be found here:

Trust behind bars: Measuring change in inmates’ prosocial preferences

Analyses reveal positive and significant increases in participants’ levels of patience, self-esteem, generosity and ability to forgive.

A noted sociology professor from the University of Amsterdam, Netherlands, Bowen Paulle, authored a scholarly article on the GRIP Program, which can be found here:

Stumbling on the rehabilitation gold? Foucault vs. Foucault in San Quentin and beyond

Dr. Paulle’s findings determined that the GRIP Program is a self-correcting intervention. Within a matter of months, prisoners were buying into the program’s cognitive-behavioral and trauma therapy goals and authentically “doing their work.”

Further documentation of GRIP’s research data can be found here:

GRIP Research Findings and Forecast 

GRIP Fidelity Rating Questionnaire

March 2020 Study
Evidence of Success