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Reliability of Response in a Sociomedical Population Study
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1971
Year
Family MedicineHuman Population LaboratoryPopulation Health SciencesPsychometricsMental HealthSocial Determinants Of HealthAlameda CountyPsychologySocial HealthPatient-reported OutcomePublic HealthReliabilitySociomedical Population StudyOutcomes ResearchPsychosocial FactorApplied Social PsychologyPopulation HouseholdMultilevel ModelingPopulation StudyPsychosocial ResearchPsychosocial IssueOutcome AssessmentHealth BehaviorMedicineSurvey Methodology
A study of reliability or stability of response, conducted in Alameda County, California by means of two identical questionnaires completed by respondents within approximately two weeks, indicates that three out of four respondents answered at least go per cent of the items identically; only one in fifty did so for as few as 70–79 per cent of the items. Within this rather narrow range, reliability varied with education, age, length of time between questionnaires, and particularly with the “hardness” of the information requested. The small number of responses indicating poor health, marital dissatisfaction, or a psychological problem were more likely to change for the better than responses indicating no such problem were to change for the worse. Joseph R. Hochstim is Director of the Human Population Laboratory at the California State Department of Public Health; Karen S. Renne is the Laboratory's sociologist. The Human Population Laboratory's work is supported by research grant HS 00368 from the National Center for Health Services R. & D., U.S. Public Health Service.