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Skill Improvement through Learning in Therapy (SKILT): a study protocol for a randomized trial testing the direct effects of cognitive behavioral therapy skill acquisition and role of learning capacity in depression

Skill Improvement through Learning in Therapy (SKILT): a study protocol for a randomized trial testing the direct effects of cognitive behavioral therapy skill acquisition and role of learning capacity in depression - SKILT

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00024116
Enrollment
150
Registered
2021-02-04
Start date
2021-05-01
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

F32

Interventions

Group 1: Active control condition (discussion of dysfunctional thoughts and behaviors in relation to depressive symptoms) Group 2: CBT skill acquisition Group 3: CBT skill acquisition + cognitive supp

Sponsors

Department of Clinical Psychology and Psychotherapy, University of Freiburg
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. primary diagnosis of a major depressive disorder (MDD) (excluding non-dysthymic persistent major depressive disorder) as indicated by Structural Clinical Interview for DSM-5 Axis I Disorders (SCID-5-CV) 2. a score on Beck’s Depression Inventory II (BDI-II) = 14. At a score = 28 can the individual only be included when the item on suicidality is answered with 0 or 1. 3. age between 18-65 4. sufficient knowledge of the German language

Exclusion criteria

Exclusion criteria: 1. the presence of a previously stated diagnosis of attention-deficit/hyperactivity disorder or attention-deficit disorder 2. the presence of a current drug or alcohol dependence 3. the presence of a cluster A or B personality disorder according to the Structural Clinical Interview for DSM-5 Axis I (SCID-5-CV) or Axis II Disorders (SCID-5-PD) 4. patients who have received CBT focusing on a major depressive disorder in the previous year 5. patients who show a high risk of suicide according to the intake staff

Design outcomes

Primary

MeasureTime frame
1. CBT skills measured with the Ways of Responding (Barber & DeRubeis, 1992) and the Behavioral Activation for Depression Scale – short form (BADS-SF) (BA skills) and Cognitive Change Sustained Change (CCSC) (CT skills) 2. Depression measured with the Beck Depression Inventory-II (BDI-II; Beck, Steer, & Brown, 1996).

Secondary

MeasureTime frame
1. Therapy processes: Idiosyncratic thoughts and behaviors measured with the Core Belief Interview (CBI; McBride, Farvolden, & Swallow, 2007), general dysfunctional thinking measured using the Cognition Checklist (CCL; Taylor, Koch, Woody, & McLean, 1997), reward processing measured using the Reward Probability Index (RPI; Carvalho et al., 2011) and the Temporal Experience of Pleasure Scale (TEPS; Gard, Gard, Kring, & John, 2006). 2. Other secondary outcomes: additional psychological symptoms measured using the Brief Symptom Inventory (BSI; Derogatis & Melisaratos, 1983), recall measured using the Patient Recall Test (PRT; Lee & Harvey, 2015). 3. Moderator (learning capacity): Verbal working memory will be measured using the N-back task (Braver et al., 1997), visual working memory will be measured using the probe change detection task (PCDT; Dai, Li, Gan, & Du, 2019), long-term memory will be measured using the paired associates task (Unsworth, Brewer, & Spillers, 2009), selective attention will be measured using a free-viewing eye-tracking task (Klawohn et al., 2020).

Countries

Germany

Contacts

Public ContactSanne Bruijniks

University of Freiburg, Department of Psychology, Clinical Psychology and Psychotherapy

sanne.bruijniks@psychologie.uni-freiburg.de0761-2033019

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 9, 2026