Document Detail


Reliability and validity of 2 single-item measures of psychosocial stress.
MedLine Citation:
PMID:  16641618     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Practical limitations in epidemiologic research may necessitate use of only a few questions for assessing the complex phenomenon called "stress." The objective of this study was to evaluate the measurement characteristics of 2 single-item measures on the amount of stress and the ability to handle stress. METHODS: We selected 218 adults age 50 to 76 years living in western Washington state from a large prospective cohort study of lifestyle factors and cancer risk to evaluate the 3-month test-retest reliability and intermethod reliability of the stress questions. To assess the latter, we compared 2 single-item measures on stress with 3 more fully validated multi-item instruments on perceived stress, daily hassles, and life events, which assessed the same underlying constructs as the single-item measures. RESULTS: The test-retest reliabilities for the single-item stress measures were good (kappa and intraclass correlations between 0.66 and 0.74). The intermethod reliabilities comparing the 2 single-item stress measures with 3 multi-item instruments were moderate (r = 0.31-0.46) and comparable to correlations observed among the 3 multi-item instruments (r = 0.25-0.47). CONCLUSIONS: The 2 single-item stress measures are reliable at measuring stress with validity similar to longer questionnaires. Single-item measures offer a practical instrument for assessing stress in large prospective epidemiologic studies that lack space for longer instruments.
Authors:
Alyson J Littman; Emily White; Jessie A Satia; Deborah J Bowen; Alan R Kristal
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Validation Studies    
Journal Detail:
Title:  Epidemiology (Cambridge, Mass.)     Volume:  17     ISSN:  1044-3983     ISO Abbreviation:  Epidemiology     Publication Date:  2006 Jul 
Date Detail:
Created Date:  2006-06-30     Completed Date:  2006-12-12     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  9009644     Medline TA:  Epidemiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  398-403     Citation Subset:  IM    
Affiliation:
Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024, USA. alittman@fhcrc.org
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MeSH Terms
Descriptor/Qualifier:
Aged
Female
Health Status Indicators
Humans
Male
Middle Aged
Questionnaires
Reproducibility of Results
Stress, Psychological / diagnosis*,  psychology
Grant Support
ID/Acronym/Agency:
R01 CA74846/CA/NCI NIH HHS; R25 CA94880/CA/NCI NIH HHS

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