Q. How do I find examples of validated food frequency questionnaires used in various studies?
Dr. Day has co-authored a book chapter in a nutrition book that lists food questionnaires. I can't remember the title right now but I will try to find it.
There is a way to search forequesting aires on PsycINFO. This isn't perfect but it will get you started. Just copy and paste this into the PsycInfo test box:
(food* adj3 frequenc*).ti,ab,id. and (exp test construction/ or exp measurement/ or "22".cc. or ((testing or test or questionnaire* or instrument* or survey* or measurement* or assessment* or scale or scales) and (validation or validity or reliability or internal consistency or psychometric*)).ti,ab,id.)
To get to PsycINFO:
Click on P and scroll down.
I just gave it a try and got 82 articles.