A profile of Pedophilia

A Profile of Pedophilia: Definition, Characteristics of Offenders, Recidivism, Treatment Outcomes, and Forensic Issues (RYAN C. W. HALL, MD, AND RICHARD C. W. HALL, MD, PA, source: http://www.abusewatch.net/pedophiles.pdf

Can we find some study, which is not based on criminal pedophiles/abusers of children?

From that text:

PROBLEMS WITH PEDOPHILIC RESEARCH
When reviewing research studies on pedophilia, it must be remembered that there is a strong potential for sampling biases. Many studies obtained their pedophilic or sexual offender populations from prisons or legally mandated sexual treatment groups. This sampling raises questions about the subjects’ willingness to be honest and/or to in- criminate themselves on self-report surveys. The prison populations also exclude pedophiles who have not been caught, those whose level of offense was not severe enough to result in jail time, those who could control their impulses, and those who were more financially successful and better able to prevail in their legal troubles through the retention of private attorneys. This sampling introduces the possibility that the findings of lower intelligence, per- sonality disorder, and an overall reduced level of function- ing are more characteristic of pedophiles who were arrested than the characteristics of the group as a whole. Also, many studies are based on small sampling sizes. Finally, the findings from one study may not be generalizable to another because of significant differences that exist between pedophilic subgroups and the children they abuse.