The evidence is in my experiences, two of which I would like to briefly share. Since then many times over, with victims of domestic violence, rape, and incest I have been privileged to observe the same process happen. Once again, I found myself questioning. Upon reflection the answer lies in honoring people, their strengths, their weakness, their choices, simply their personhood. A model for this is found in the eight values that comprise the humanistic approach to group practice which follow.
People are inherently worthy.
People are responsible for and to others. People have a right to belong, to be included. People have the right to take part and to be heard. People have the right to freedom of speech and expression. Differences among people are enriching.