> It is quite possible that people who are more likely to be diagnosed with
> ADHD (mostly lower socio economic strata) also are more likely to be exposed
> to pesticides (as they cannot afford more expensive organic food,) which
> may produce statistical correlations but not necessarily causality.
Do you think it's likely they haven't taken that into account? I've gotten accustomed finding out that the authors and/or reviewers think of these things, too.
-- Andy