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Table 1 Summary of study measures

From: Comparative effectiveness of cognitive and dynamic therapies for major depressive disorder in a community mental health setting: study protocol for a randomized non-inferiority trial

Study variables Assessment point Measurement scale Reference
Diagnosis    
Depression Baseline Quick Inventory for Depressive Symptomatology (QIDS), 16 items, α = .86 Rush et al. [2003]
Depression Baseline Structured Clinical Interview (SCID) for the DSM-IV First et al. [1997]
Clinical characteristics    
Demographics Baseline Demographic Questionnaire Developed for current study
Alcohol/substance use Baseline Alcohol Use Disorders Identification Test (AUDIT), 10 items, α = .83 Hays et al. [1995]
We developed 6 items to evaluate substance use, adapted from the AUDIT
Trauma history Baseline Traumatic Life Events Questionnaire (TLEQ), 24 items Kubany et al. [2000]
Treatment expectations Baseline Attitudes and Expectations (AAE), 14 items Adapted from Elkin et al. [1989]
Symptoms    
General mental health Baseline, M1, M2, M4, M5, T1-16 Behavior and Symptom Identification Scale (BASIS-24), 24 items, α = .77-.91 Eisen et al. [2004]
Depression Baseline, M1, M2, M4, M5, T1-16 Beck Depression Inventory–II (BDI-II), 21 items, α = .91 Beck et al. [1996]
Depression Baseline, M1, M2, M4, M5 Hamilton Rating Scale for Depression (HAM-D), 27 items, α = .79 Hamilton, [1960]; Trajkovic et al. [2011]
Functioning/broader outcome    
Life satisfaction Baseline, M1, M2, M4, M5 Quality of Life Inventory (QOLI), 32 items, α = .77-.89 Frisch et al. [1992]
General functioning Baseline, M1, M2, M4, M5 The Medical Outcomes Study 36-item Short-Form (SF-36), 36 items, α = .78-.94 Ware & Sherbourne [1992]; McHorney et al. [1994]
Interpersonal problems Baseline, M1, M2, M4, M5 Inventory of Interpersonal Problems (IIP-48), 48 items, α = .69-.80 Gude et al. [2000]
Therapeutic process    
Therapeutic alliance T2, T4, T6, T8 Working Alliance Inventory–Client (WAI-C), 12 items, α = .93 Horvath & Greenberg [1989]
Treatment credibility T2 Opinions About Treatment (OAT), 3 items, α = .90 Adapted from Borkovec & Nau [1972]; Mooney et al. [2013]
Therapeutic mechanism    
Dysfunctional attitudes Baseline, M1, M2, M5 Dysfunctional Attitudes Scale (DAS), 40 items, α = .86 Weissman & Beck [1978]; De Graaf et al. [2009]
Compensatory skills Baseline, M1, M2, M5 Ways of Responding–Community (WOR-C), α = .72-.79 Adapted from Barber & DeRubeis [1992]; Connolly Gibbons et al. [2014]
Ways of Responding'self-Report (WOR-SR), 65 items, α = .94-.96
self-understanding Baseline, M1, M2, M5 Self-Understanding of Interpersonal Patterns Scale–Revised (SUIP-R), 28 items, α = .92 Connolly Gibbons et al. [2009]
Underlying depressogenic schemas Baseline, M1, M2, M5 Psychological Distance Scaling Task (PDST), 80 items Dozois & Dobson [2001]
  1. Note: M indicates month assessment (M1 = month 1). T indicates therapy session (T1 = therapy session 1).