What dietary assessment methods were used in the 1997 National Nutrition Survey?

Question

BlackTom AI · Accepted Answer

Question restatement: What dietary assessment methods were used in the 1997 National Nutrition Survey?

Option a: Diet record and food frequency questionnaire. A diet record involves participants recording all foods and amounts over several days, and a food frequency questionnaire (FFQ) asks about usual intake over a longer period. If the 1997 survey did not use this exact combination (diet records are less commonly paired with FFQs for that survey year), this option may misstate the actual methodology.

Option b: 24 hour recall and food frequency questionnaire. The 24 hour recall learns about what a person ate in the previous day, capturing detailed intake for that day, while the FFQ assesses usual intake over a longer timeframe. This combination is a common pairing in national nutrition surveys, making it a plausible match for the 1997 National Nutrition Survey.

Option c: 24 hour recall and food record. While a 24 hour recall captures a recent 24-hour snapshot, pairing it with a food record (which requires real-time logging by the participant over multiple days) is less typical for a single survey round and could introduce inconsistent data collection timing, reducing practicality for a national survey.

Option d: Diet history and direct observation. Diet history attempts to summarize usual intake through interviews, and direct observation entails watching meals, which is labor-intensive and unlikely to be used in a large national survey due to resource constraints.

Why option b is the most plausible correct choice: The combination of a 24 hour recall with an FFQ provides both detailed short-term intake information and a measure of usual intake over time, which is a standard approach in many national nutrition assessments to estimate nutrient intakes and dietary patterns. It balances depth (24-hour recall) and breadth (FFQ) across a large population.

Why the other options are less consistent: Option a’s pairing (diet record + FFQ) is not as commonly used together in a national survey due to the burden of diet records. Option c’s mix (24-hour recall + diet record) introduces redundant or mismatched data collection timelines. Option d (diet history + direct observation) is impractical for a nationwide survey because direct observation is resource-intensive and diet history is less often used as the sole combination for large-scale assessments.

What dietary assessment methods were used in the 1997 National Nutrition Survey?单项选择题

类似问题

What dietary assessment methods were used in the 2008/09 National Nutrition Survey?

What is an advantage of a 24 hour recall?

What dietary assessment methods were used in the 1997 National Nutrition Survey?

Question at position 17 Food Frequency Questionnaire (FFQ) is an example of:A biochemical assessmentA physical assessmentA dietary assessmentA clinical assessment

Easy Diet Diary is an app that can be used to record food intake. What is an advantage of Easy Diet Diary?

Simon completes a series of written questions about the amount and quantity of foods he usually eats. What method to measure dietary intake has been used:

To assess Diane's dietary intake, Jane asks her a series of questions to elicit information about her usual dietary intake then uses a list of foods to check off any other items that may have been forgotten. What method to measure dietary intake has been used:

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单