Toward a very brief self-report to assess the core symptoms of depression (VQIDS-SR5).
To develop a short, 5-item measure of the core symptoms of depression based on the 16-item Quick Inventory of Depressive Symptomatology - Self-Report (QIDS-SR16) and to evaluate psychometric properties of this new measure (Very Quick Inventory of Depressive Symptomatology - Self-Report: VQIDS-SR5).



Using data from a convenience sample of the Combining Medications to Enhance Depression Outcomes (CO-MED) trial, we evaluated the psychometric properties of the VQIDS-SR5, its sensitivity to change, and its comparability to the QIDS-SR16and clinician-rated scales (QIDS-C16and VQIDS-C5).



The VQIDS-SR5has a single-factor structure with an acceptable internal consistency (Cronbach's alpha: 0.67-0.81). The VQIDS-SR5was as sensitive to change as its parent scale, then QIDS-SR16and, detected change at an earlier time frame. Additionally, the VQIDS-SR5was comparable to the QIDS-SR16, QIDS-C16, and VQIDS-C5.



The VQIDS-SR5can effectively evaluate the core symptoms of depression during the course of treatment.
Center for Depression Research and Clinical Care, UT Southwestern Medical Center, Dallas, TX, USA.
N
N
De La Garza
Duke-National University of Singapore, Singapore.
A
A
John Rush
Center for Depression Research and Clinical Care, UT Southwestern Medical Center, Dallas, TX, USA.
B D
BD
Grannemann
Center for Depression Research and Clinical Care, UT Southwestern Medical Center, Dallas, TX, USA.
M H
0000-0002-2983-1110
MH
Trivedi
D000328:Adult; D003863:Depression / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D057566:Self Report; D016896:Treatment Outcome
depression; psychometrics; self-report