Validation of Two Methods of Data Collection of Self-Reported Medicine Use Among the Elderly
The accuracy of medicine use information was compared for a telephone interview and mail questionnaire, using an in-home medicine check as the standard of assessment The validity of medicine use information varied by data source, level of specificity of data, and respondent characteristics. The mail questionnaire was the more valid source of overall medicine use information. Implications for both service providers and researchers are provided.
Landry, Julie A.; Smyer, Michael A.; Tubman, Jonathan G.; Simonson, William; Lago, Dan J.; and Roberts, Jay. "Validation of Two Methods of Data Collection of Self-Reported Medicine Use Among the Elderly." Gerontologist 28, no. 5 (1988) : 672-676.
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