ch 4 a frequent food questionnaire (ffq) is u...
ch 4 a frequent food questionnaire (ffq) is used to gather nutritional information on people. it typically is a one - time assessment of a persons typical diet. a study examined the accuracy of a ffq by randomly selecting a group of subjects who were asked to keep a detailed food diary (dr). the investigators then used the answers from the ffq to predict the actual consumption of certain foods such as dietary fats.\nthe answer from the ffq is an explanatory variable.\nthe answer from the food diary is a response, and the answer from the ffq is an explanatory variable.\nthe answer from the food diary is a response.\nthe answer from the ffq is a response.
Answer
# Brief Explanations:
In this study, the goal is to predict actual food consumption using FFQ answers. The actual consumption (represented by food - diary data) is the response variable that we want to predict, and the FFQ answers are used to make that prediction, so they are the explanatory variables.
# Answer:
The answer from the food diary is a response, and the answer from the FFQ is an explanatory variable.