Psychologists don't see an unbiased samples of families. What's unthinkable in a high functioning family like yours would, at some points when I was growing up,

Psychologists don't see an unbiased samples of families. What's unthinkable in a high functioning family like yours would, at some points when I was growing up, have been extremely mild in mine. I don't know what the base rate is, but it's certainly not something you can guess from a single sample.