"Jay Tanzman" <[EMAIL PROTECTED]> wrote in message
news:<a42e88$1bthp5$[EMAIL PROTECTED]>...
> Wuzzy <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > It is because I am validating a 24hr dietary recall questionnaire
> > using
> > a food frequency questionnaire:
>
It was just an experiment.
My theory was that you can select only people whose 24hr questionnaire
was accurate with the ffq and only take that 20% of 24hr that can be
explained by ffq then you might come up with a more accurate picture..
Much like "golden standard" method of deattenuation.. It didn't work.
it is interesting to re-assign food frequencies to people by using
that whichi is predicted by 24hr..
anyway it was fun to try..
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