| Improving food frequency questionnaires: a qualitative approach using cognitive interviewing. | |
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MedLine Citation:
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PMID: 7797809 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In an attempt to improve data quality and ease of administration of standard self-administered food frequency questionnaires, various alternative approaches were tried for inquiring about frequency of consumption, portion size, seasonal intake, and food preparation. Evaluation consisted of a cognitive interviewing method in which respondents verbalize their thought process while completing several variations of a questionnaire. Interviewers observed and asked follow-up probe questions to evaluate problems or inconsistencies verbalized by respondents. Consensus and judgment by interviewers and observers suggested several problematic features of food frequency questionnaires: formatting of questions about frequency and portion size; computing average frequencies for aggregated food items or for foods eaten seasonally; comprehension of many items; and ordering of foods. These findings led to cognitive refinement and innovations, which included detailed questions regarding preparation or use of low-fat varieties or other alternatives to help better describe specifics of intake for some foods; questions on seasonal intake for several foods; inclusion of portion size ranges; and additional response categories for frequency of intake. Cognitive interviewing is an important step in pinpointing cognitive problems in dietary questionnaires. |
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Authors:
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A F Subar; F E Thompson; A F Smith; J B Jobe; R G Ziegler; N Potischman; A Schatzkin; A Hartman; C Swanson; L Kruse |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the American Dietetic Association Volume: 95 ISSN: 0002-8223 ISO Abbreviation: J Am Diet Assoc Publication Date: 1995 Jul |
Date Detail:
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Created Date: 1995-08-03 Completed Date: 1995-08-03 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7503061 Medline TA: J Am Diet Assoc Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 781-8; quiz 789-90 Citation Subset: AIM; IM |
Affiliation:
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National Cancer Institute, Division of Cancer Prevention and Control, Bethesda, MD 20892-7344, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Cognition* Diet Records* Eating* Female Humans Interviews as Topic / methods* Male Middle Aged Questionnaires / standards* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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