Food Frequency Questionnaires

Essay: Write a paper noting what you think are the strengths and limitations of the 3 Food Frequency Questionnaires (FFQs) (Harvard FFQ, Block FFQ, and DHQIII). What are some differences you notice when you compare them?

The purpose of this assignment is to become familiar with commonly used Food Frequency Questionnaires and Screeners used in research. In completing the various instruments, you can get a sense of what it might be like for a study participant to have to complete these questionnaires, as well as some of their strengths and limitations.
(1) The first is the Harvard FFQ developed by Walter Willett and colleagues. A hard copy is provided for you to fill in.
(2) The second was developed by Gladys Block FFQ. This particular version was used in a study of breast cancer survivorship. Be sure to note the serving sizes on the last page to help estimate amounts when completing the FFQ. A hard copy is provided for you to fill in.
(3) The third is the Diet History Questionnaire (DHQ) created by Amy Subar, Fran Thompson, and others at the National Cancer Institute. The most recent is the DHQ III. The DHQ III is recommended to be completed online, not paper and pencil. Go to the website and complete the demo.

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