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At this moment, we have 352 randomized trials in our database. These 352 trials are based on the searches in bibliographical databases until January 1, 2013. This dataset contains only studies in which at least one of the following contrasts was examined:

  1. A psychological treatment was compared with a control condition (waiting list; care-as-usual; pill placebo; psychological placebo): 204 studies.
  2. A psychological treatment was compared with pharmacotherapy for depression: 45 studies.
  3. A psychological treatment was compared with the combination of psychological and pharmacological treatment: 21 studies.
  4. Pharmacological treatment was compared with the combination of psychological and pharmacological treatment: 38 studies.
  5. An individual psychological treatment was compared with a group treatment: 12 studies.
  6. The combination of psychotherapy plus pharmacotherapy was compared with the combination of psychotherapy plus placebo: 18 studies.
  7. A face-to-face treatment was compared with a guided self-help treatment: 6 studies.
  8. Studies in which one of seven major psychological treatments was compared with another psychological treatment. These seven major types of treatment that were examined in five or more studies (cognitive behavior therapy; nondirective supportive therapy; behavioral activation therapy; psychodynamic therapy; problem-solving therapy; interpersonal psychotherapy; social skills training; operational definitions of these treatments are described elsewhere (Cuijpers et al., 2008): 87 studies.
  9. Studies on psychotherapy for depressed adult inpatients: 13 studies.
  10. Studies on psychological interventions without professional support: 13 studies.  

You can download here the following files:

·       An excel sheet with the characteristics of the 352 included studies, general characteristics of the studies, the conditions examined in these studies, duplicate papers, and the references of all 1476 pdf’s that have been collected for the database.

·       A document in which the different tabs in the excel sheet are described.

Interested researchers can contact us for a file with the effect sizes for each study.

We have several files available which are related to specific published meta-analyses. Interested researchers can contact us to get these files.