Schema therapy for chronic depression: Results of a multiple single case series

Fritz Renner*, Arnoud Arntz, Frank Peeters, Jill Lobbestael, Marcus J. H. Huibers

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

BACKGROUND AND OBJECTIVES: The aim of this study was to test the effects of individual schema therapy (ST) for patients with chronic depression. METHODS: Using a multiple-baseline single case series design, patients with chronic major depressive disorder (N = 25) first entered a 6-24 weeks baseline phase; this phase functioned as a no-treatment control condition. Then, patients started a 12 week exploration phase during which symptoms and underlying schemas were explored; this phase functioned as an attention control condition. Next, patients received up to 65 sessions of individual ST. The Beck Depression Inventory II (BDI-II) and the Quick Inventory of Depressive Symptomatology (QIDS) were the primary outcome measures. The BDI-II was assessed once a week during all phases of the study resulting in 100 repeated assessments per participant on average. Mixed regression analysis was used to contrast change in symptoms during the intervention with change in symptoms during the baseline and exploration control phases. RESULTS: When compared to the no-treatment control period, the intervention had a significant, large effect on depressive symptoms (Cohen's d BDI-II = 1.30; Cohen's d QIDS = 1.22). Effects on secondary continuous outcomes were moderate to large. LIMITATIONS: The small sample size and lack of a control group. CONCLUSIONS: These findings provide evidence that ST might be an effective treatment for patients with chronic depression.
Original languageEnglish
Pages (from-to)66-73
Number of pages8
JournalJournal of Behavior Therapy and Experimental Psychiatry
Volume51
DOIs
Publication statusPublished - Jun 2016

Keywords

  • Chronic depression
  • Schema therapy
  • Psychological treatment
  • Single case series
  • PSYCHOMETRIC PROPERTIES
  • TRANSFERENCE-FOCUSED PSYCHOTHERAPY
  • MAJOR DEPRESSION
  • COMORBIDITY
  • TRIAL
  • INTERVENTIONS
  • BORDERLINE PERSONALITY-DISORDER
  • INVENTORY
  • BEHAVIORAL-ANALYSIS SYSTEM
  • SYMPTOMATOLOGY

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