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Validity

David L. Streiner and Geoffrey R. Norman

in Health Measurement Scales: A practical guide to their development and use

Published in print:
2008
Published Online:
September 2009
ISBN:
9780199231881
eISBN:
9780191724015
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199231881.003.0010
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

Over the past 50 years, the meaning of ‘validity’ has changed. It no longer is seen as an intrinsic property of the test, but as an interaction among the scale, those who are completing it, and the ... More


Design Concepts in Nutritional Epidemiology

Barrie M. Margetts and Michael Nelson (eds)

Published in print:
1997
Published Online:
September 2009
ISBN:
9780192627391
eISBN:
9780191723704
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780192627391.001.0001
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This book provides a practical guide to the understanding, interpretation, and application of the principles of nutritional epidemiology, set in the context of public health nutrition. Relating ... More


Reproducibility and Validity of Food-Frequency Questionnaires

Walter Willett

in Nutritional Epidemiology

Published in print:
1998
Published Online:
September 2009
ISBN:
9780195122978
eISBN:
9780199864249
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195122978.003.06
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This chapter deals with the approaches used to evaluate dietary questionnaires, the design of validation studies, and the analysis and presentation of data from validation studies. The interpretation ... More


Questionnaires

Mark J. Nieuwenhuijsen

in Exposure Assessment in Occupational and Environmental Epidemiology

Published in print:
2003
Published Online:
September 2009
ISBN:
9780198528616
eISBN:
9780191723933
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198528616.003.0002
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This chapter provides a general overview of the use of exposure questionnaires in environmental epidemiology, and issues related to the design, use, and validation of these questionnaires. It ... More


Physical Activity Measurements

Frank B. Hu

in Obesity Epidemiology

Published in print:
2008
Published Online:
September 2009
ISBN:
9780195312911
eISBN:
9780199865260
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195312911.003.0007
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This chapter begins by discussing conceptual definitions and the multidimensional aspects of physical activity and exercise. It then describes self-reported methods and monitoring devices for ... More


8. The validation of dietary assessment

Michael Nelson

in Design Concepts in Nutritional Epidemiology

Published in print:
1997
Published Online:
September 2009
ISBN:
9780192627391
eISBN:
9780191723704
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780192627391.003.0008
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

Validation considers the context within which measures are being made (national, household, individual) and helps to describe the extent to which observed values differ from the truth. This chapter ... More


Reproducibility and Validity of Food Frequency Questionnaires

Walter Willett and Elizabeth Lenart

in Nutritional Epidemiology

Published in print:
2012
Published Online:
January 2013
ISBN:
9780199754038
eISBN:
9780199979448
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199754038.003.0006
Subject:
Public Health and Epidemiology, Epidemiology, Public Health

The food frequency questionnaire has been the most widely used method for dietary assessment in epidemiologic studies. It is, therefore, crucial to consider in detail the degree to which such ... More


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