As I have had a great deal published on psychological rigidity and
authoritarianism, I found this article interesting but lacking in
background in those fields. My take on what the research shows is that a
general trait of psychological rigidity exists only insofar as it is a
byproduct of low IQ -- and psychological rigidity is clearly at work in
what the authors studied.
Further: Low IQ people are more likely to get fat and low IQ people
tend to be more rigid and have more simplistic approaches to things.
It's IQ that we see at work in the above study. You need to look at
WHY some parents treat their children less flexibly.
So: Fat parents tend to have fat children -- mainly for genetic
reasons, though not entirely so. So low IQ, fat, rigid parents will tend
to have fat children -- which can arise solely from the genetics for
fatness that are passed on, not anything at all that the parents do.
Conflict of Interest:
None declared