The Quick Inventory of Depressive Symptomatology, Self-Report (QIDS-SR16): A Psychometric Evaluation in Patients with Asthma and Major Depression

dc.contributor.advisorRush, A. Johnen
dc.creatorMurray, Michelleen
dc.date.accessioned2010-07-12T18:09:10Z
dc.date.available2010-07-12T18:09:10Z
dc.date.issued2006-05-15
dc.description.abstractSTATEMENT OF THE PROBLEM: Despite research evidence of high comorbidity between depression and asthma, few studies have addressed the performance of assessment tools which may assist physicians in assessing depression among asthma patients. The present study is the first to evaluate the psychometric properties of the self-report Quick Inventory of Depressive Symptomatology (QIDS-SR16), a 16-item measure of depressive symptom severity, in asthma patients. METHODS: The psychometric properties of the QIDS-SR16 are compared and evaluated in relation to the self-report Inventory of Depressive Symptomatology (IDS-SR30) and the17-item, clinician-rated Hamilton Rating Scale for Depression (HRSD17) in 73 asthma outpatients treated for nonpsychotic Major Depressive Disorder. Correlations between the depression rating scales and the Mini Asthma Quality of Life Questionnaire (MiniAQLQ) were calculated. RESULTS: Internal consistency at exit was strong for the QIDS-SR16 (Cronbach's a =.87) and the IDS-SR30 (Cronbach's a =.95). Total scores for the QIDS-SR16 showed high correlations with the HRSD17 (.85) and the IDS-SR30 (.97) total scores. One-hundred percent of the QIDS-SR16 items and 93% of the IDS-SR30 item-total score correlations reached statistical significance of p<.0001. The QIDS-SR16, the IDS-SR30, and the HRSD17 showed comparable sensitivity to symptom change, indicating high concurrent validity for all three scales. The total QIDS-SR16 baseline to exit change score demonstrated a significant negative correlation to the MiniAQLQ, providing another indicator of concurrent validity. CONCLUSIONS: The QIDS-SR16 shows good reliability and impressive construct validity, including test homogeneity, content validity, and concurrent validity. Strong psychometric properties as well as a self-report format, brief administration time, and sensitivity to treatment change make the QIDS-SR16 a valuable clinical and research instrument.en
dc.format.digitalOriginborn digitalen
dc.format.mediumElectronicen
dc.format.mimetypeapplication/pdfen
dc.identifier.oclc70057079
dc.identifier.urihttps://hdl.handle.net/2152.5/464
dc.language.isoenen
dc.subjectDepressionen
dc.subjectAsthmaen
dc.subjectSelf-Assessmenten
dc.titleThe Quick Inventory of Depressive Symptomatology, Self-Report (QIDS-SR16): A Psychometric Evaluation in Patients with Asthma and Major Depressionen
dc.typeThesisen
dc.type.genredissertationen
dc.type.materialTexten
thesis.date.available2006-05-15
thesis.degree.departmentGraduate School of Biomedical Sciencesen
thesis.degree.disciplineClinical Psychologyen
thesis.degree.grantorUT Southwestern Medical Centeren
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
murraymichelle.pdf
Size:
645.14 KB
Format:
Adobe Portable Document Format

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
942 B
Format:
Item-specific license agreed upon to submission
Description: