E Frequent food questionnaires FFQ are a simple way to

Last updated: 5/18/2023

E Frequent food questionnaires FFQ are a simple way to obtain information on the foods that individuals consume by asking them questions about typical amounts of food consumed in a da a week or a month A more accurate picture can be gained by obtaining a detailed food diary DR for several days that are randomly chosen over a certain time period The data obtained from a frequent food questionnaire can be compared with the food diary to assess the validity of the questionnaire The data below are for seven individuals who participated in such a study on alcohol consumption DR FFQ 8 26 1 68 0 83 0 20 13 25 11 16 7 49 7 18 12 84 1 76 0 22 66 33 The correlation for these data is 91 94 0 89 86