Erschienen in:
01.07.2008 | Regular Paper
Reliability of Self-Reported Health Service Use: Evidence from the Women with Co-occurring Disorders, and Violence Study
verfasst von:
Sukyung Chung, PhD, Marisa Elena Domino, PhD, Elizabeth W. Jackson, PhD, Joseph P. Morrissey, PhD
Erschienen in:
The Journal of Behavioral Health Services & Research
|
Ausgabe 3/2008
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Abstract
In behavioral health services research, self-reporting provides comprehensive information on service use, but may have limited reliability because of recall bias and misclassification. This study examines test–retest reliability of self-reported health service use, factors affecting reliability, and the impact of inconsistent reporting on the robustness of cost estimates using the test–retest data from the Women, Co-occurring Disorders, and Violence Study (n = 186). Reliability varies widely across service types: moderate to substantial (k = 0.65–0.94) for any use; slight to substantial (ICC = 0.12–0.93) for quantity of use; and none to moderate (k = −0.06–0.79) for service content, but is not affected by psychiatric symptom severity. Cost estimates do not differ according to the use of test or retest data. Findings suggest that self-reporting provides reliable data on service quantity and is adequate for economic evaluations. However, self-reporting of treatment content in highly specified service categories (e.g., individual counseling during residential treatment) may not be reliable.