In my Psychology 101 course, 25 years ago, we were discussing levels of moral reasoning. One study in particular compared two grade school classes, one at a public school, and one at a private Hebrew school. They compared the level of improvement the two classes experienced after being given instruction in moral reasoning. The superior performance of the Hebrew children was explained as related to higher socioeconomic status. It never occurred to anyone that these children could have been more receptive to this type of teaching since this was a religious school where, no doubt, this type of subject was broached regularly.

I couldn't imagine why I, a mere fresman, could see the inconsistincies of this study, and the authors of the textbook could not. In the last 25 years, similar observations have led me to the following hypothesis...

People who find human nature confusing are often drawn to Psychology as a discipline. Conversely...

People who are adept at understanding human behaviour find it useless.

Therefore...