We believe that scientific study has an important role in accounting for the long-term benefits of the Hoffman Quadrinity Process. The studies below show the positive effect of the Process on depression, anger and anxiety.

Research Confirms Benefits
In 2003 researchers from the University of California completed the three year grant research study that confirms the efficacy and lasting benefit of the the Hoffman Process. The study demonstrated lasting significant increases in Emotional Intelligence, forgiveness, spirituality and vitality, accompanied by lasting significant decreases in anger, anxiety and depression.

Click for overview of research findings

This study was conducted by two noted researchers, Professors Michael R. Levenson and Carolyn M. Aldwin. It appears in the Nov/Dec 2006 issue of the Scientific Peer Review Journal: Explore, The Journal of Science and Healing.

Click for the Explore Journal with full research details

"This unique course has a hugely impressive record for helping individuals achieve lasting emotional growth. Nothing else comes close."
Oliver James, clinical psychologist, author 'Affluenza'

The Windhausen Study
A study of the Quadrinity Process, and probably the most significant long-term study to date was written in 1997 as the dissertation of the German psychologist Christiane Windhausen, at the Wilhelms-University Muenster in Westphalia. Mrs. Windhausen studied theology before graduating in psychology at the above university. Her dissertation is based on studies carried out with 65 randomly selected clients, all of whom completed the Quadrinity Process in its present form during 1994 and 1995.
The Windhausen Study on The Hoffman Quadrinity Process

The Caldwell Report
A comprehensive scientific research study on the Quadrinity Process conducted by Alex B. Caldwell, Ph.D. and Curtis S Hileman, Ph.D. on 58 participants of the Process from 1983 to 1985. Although it should be noted that from 1967 to 1986 the format of the Process was somewhat different than it is today (two 3-hour sessions per week for 13 weeks [i.e., twenty-six 3-hour sessions] versus the present 7-day residential intensive), the overall structure and content of the Process during those earlier years was essentially similar to what is offered today. In fact, the Hoffman Quadrinity Process has been refined and improved in many ways since the Caldwell Report was conducted.
Caldwell Report on The Hoffman Quadrinity Process

The Candate Report
In 1991 another study involving 31 individuals was conducted by Alison Candate, M.F.C.C. (intern). Rather than measuring personal change Ms. Candate's research survey was directed at clients' self reported perceptions of change and value. The Candate Study statistically reflects the responses and reactions people have to participating in the Hoffman Quadrinity Process.
The Candate Report on The Hoffman Quadrinity Process