Frequent Food Questionnaires (FFQ) Are a Simple Way to Obtain

question 27

Multiple Choice

Frequent food questionnaires (FFQ) are a simple way to obtain information on the foods individuals consume by asking them questions about typical amounts of food consumed in a day, a week, or a month. A more accurate picture is obtained 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 correlation between alcohol consumption from the food questionnaire and diary was r = 0.89, based on seven individuals: Based on the seven individuals for whom data are available, which of the following statements is incorrect?

• A)Typical consumption, as stated on the FFQ, is positively associated with what is actually consumed.
• B)The FFQ is a reasonable tool to obtain information on the amount of alcohol consumed by individuals.
• C)Because r > 0, the amount that is truly consumed is always larger than what is stated on the FFQ.
• D)All of the answer options are correct.

---

Definitions:

Federal Government

The national government of a federal state, which holds the authority to govern on matters that affect the entire country, differentiated from state or local governments.

Sales Tax

A tax imposed on sales of goods and services, usually calculated as a percentage of the purchase price paid by the consumer.

Country Population

The total number of people living within the borders of a specific country at a given time.

Stock Variable

A quantity measured at one specific time, representing a certain amount accumulated up to that time.