Homemaker mom, breadwinning dad who played hockey with his son on the weekends, one brother or sister, this was normal Canadian life in the fifties, right? Well, not quite, but author Mona Gleason argues that Canadian psychologists were in part responsible for this fiction of normalcy.

Postwar insecurity about the stability of family life became a platform on which to elevate the role of psychologists in society. Moving outside the universities with radio shows and child-rearing manuals, these figures of authority changed the tenor of parental and familial concern from physical to...