This paper highlights several more problems with existing studies that claim to "prove" the existence of the so-called abuse-cycle.
From a 1979 study by A. Nicholas Groth:
He studied 348 convicted sexual offenders, with a control group of 62 male police officers, and claimed to have established that convicted sexual offenders have a significantly higher chance of having been sexually traumatised as children. However:
- The offenders were questioned in person, while the police officers were given an anonymous questionnaire. This makes for a completely inappropriate comparison.
- His definition of "sexual trauma", included things like:
- "a sex-stress situation where the anxiety resulted from family reaction to the discovery of the subject's involvement in sexual activity"
- having been punished for masturbating,
- Even a man who was fitted with a penile prosthesis after a motorcycle accident.
- "sexual trauma" by a same-aged or younger "assailant" occurred in 30% of the "traumatized" rapists and 16% of the "traumatized child molesters". No statistical analyses were conducted in this study. That is - 30% and 16% respectively claimed to have been sexually assaulted by children, and the author did not explore this at all.
- The age at which offenders were abused, and the age of their victims
- The type of sexual offence they committed, and that they were subjected to as children.
- The sex of their chosen victims and their own sex, and that of their assailants.
The paper can be found here.