Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample.

Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Research Abstract Details 

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Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Abstract Text:

Ira H Bernstein,A John Rush,Thomas J Carmody,Ada Woo,Madhukar H Trivedi,Ira H Bernstein,A John Rush,Thomas J Carmody,Ada Woo,Madhukar H Trivedi,

OBJECTIVES: Recent work using classical test theory (CTT) and item response theory (IRT) has found that the self-report (QIDS-SR(16)) and clinician-rated (QIDS-C(16)) versions of the 16-item quick inventory of depressive symptomatology were generally comparable in outpatients with nonpsychotic major depressive disorder (MDD). This report extends this comparison to a less well-educated, more treatment-resistant sample that included more ethnic/racial minorities using IRT and selected classical test analyses. METHODS: The QIDS-SR(16) and QIDS-C(16) were obtained in a sample of 441 outpatients with nonpsychotic MDD seen in the public sector in the Texas Medication Algorithm Project (TMAP). The Samejima graded response IRT model was used to compare the QIDS-SR(16) and QIDS-C(16). RESULTS: The nine symptom domains in the QIDS-SR(16) and QIDS-C(16) related well to overall depression. The slopes of the item response functions, a, which index the strength of relationship between overall depression and each symptom, were extremely similar with the two measures. Likewise, the CTT and IRT indices of symptom frequency (item means and locations of the item response functions, b(i) were also similar with these two measures. For example, sad mood and difficulty with concentration/decision making were highly related to the overall depression severity with both the QIDS-C(16) and QIDS-SR(16). Likewise, sleeping difficulties were commonly reported, even though they were not as strongly related to overall magnitude of depression. CONCLUSION: In this less educated, socially disadvantaged sample, differences between the QIDS-C(16) and QIDS-SR(16) were minor. The QIDS-SR(16) is a satisfactory substitute for the more time-consuming QIDS-C(16) in a broad range of adult, nonpsychotic, depressed outpatients.

Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Publishing Authors By Initials

IH Bernstein,AJ Rush,TJ Carmody,A Woo,MH Trivedi,IH Bernstein,AJ Rush,TJ Carmody,A Woo,MH Trivedi,

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Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of psychiatric research

VOLUME: 41

Page Numbers: 239-46

Journal Abbreviation:

ISSN: 0022-3956

DAY: 22

MONTH: 05

YEAR: 2006

Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Information

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LANGUAGE: eng

NlmUniqueID: 376331

Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample. Keywords Mesh Terms:

KEYWORDS: Public Sector

MESH TERMS: psychology

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Grant and Affiliation Information for Clinical vs. self-report versions of the quick inventory of depressive symptomatology in a public sector sample.

AFFILIATION: The University of Texas at Arlington, Department of Psychology, P.O. Box 19528, Arlington, TX 76019-0528, USA.

Country: England

AGENCY: United States NIMH

GRANT: MH-68852

ACRONYM: MH

MEDLINETA: J Psychiatr Res

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