[3][4][5] He served as professor and postdoctoral training director at Columbia University[6] and was designated a fellow status by the American Psychological Association.
The book studies a sample, which Sandfort described as non-generalizable, of twenty-five males aged 16 or younger who did not report negative effects from being in relationships with adults.
Finkelhor further stated that boys tend to react less negative to sexual contact with adults than girls, and that some positive reactions to such events have been observed to erode over time.
[10] David Mrazek said that Sandfort's study presented in The Sexual Aspects of Paedophile Relations suffered from sample bias.
[13] Researcher Gary Klein said that the title of Male Intergenerational Intimacy was confounding, since the book did not examine relationships between adult men of different generations.