Diet Assessment Primer Roadmap

What would you like to do?	Visit this section	Components
Learn about self-report dietary assessment instruments.	Instrument Profiles	24-hour recall (24HR) Food record (FR) Food frequency questionnaire (FFQ) Screeners
Learn about self-report dietary assessment instruments.	Comparing Dietary Assessment Instruments	Comparing instruments table
Learn about key concepts in dietary assessment.	Key Concepts	Measurement error Validation
Learn how to use self-report instruments to address different research questions.	Choosing an Approach for Dietary Assessment	Principles Underlying Recommendations Details of Recommendations and Further Considerations Describing Dietary Intake Examining the Association between Diet as an Independent Variable & a Dependent Variable Examining the Association between an Independent Variable & Diet as a Dependent Variable Evaluating the Effect of an Intervention on Diet
	Choosing an Approach for Dietary Assessment Table	Comparing approaches table
Learn more about specific aspects of dietary assessment research.	Learn More	Biomarkers Calibration Combining Instruments Day-of-Week Effect Diet History Dietary Supplements and Estimating Total Nutrient Intakes Deriving Group-level Estimates from Individual-level Intakes Energy Adjustment Food Composition Databases for 24-hour Dietary Recalls and Food Records Food Composition Databases for Food Frequency Questionnaires and Screeners Misreporting Normal Distribution Observation and Feeding Studies Outliers Ratios and Proportions Reactivity Regression Calibration Scoring Algorithms for Screeners Season Effect Social Desirability Software for 24-Hour Dietary Recalls (24HR) and Food Records Software for Food Frequency Questionnaires and Screeners Statistical Modeling Surrogate Reporting Technology in Dietary Assessment Usual Dietary Intakes
Understand the terminology.	Glossary of Key Terms	Glossary
Find articles cited in the Primer and become familiar with related resources.	References & Resources	References Resources

Last Updated: 29 Dec, 2025