In the Journal of Behavior Therapy and Experimental Psychiatry, Joanna Kowalik and colleagues reported that their review of studies on the use of cognitivie behavioral therapy for treating posttraumatic stress disorder (PTSD) revealed that cog-mod appears effective in changing raters’ responses on some of the widely used scales of the Child Behavior Checklist. However, the results of their literature review are not as powerful as one might hope, given the small number of studies and substantial variability in the studies themselves.
Abstract
Background and objectives There is no clear gold standard treatment for childhood posttraumatic stress disorder (PTSD). An annotated bibliography and meta-analysis were used to examine the efficacy of cognitive behavioral therapy (CBT) in the treatment of pediatric PTSD as measured by outcome data from the Child Behavior Checklist (CBCL).
Method A literature search produced 21 studies; of these, 10 utilized the CBCL but only eight were both 1) randomized; and 2) reported pre- and post-intervention scores.
Results The annotated bibliography revealed efficacy in general of CBT for pediatric PTSD. Using four indices of the CBCL, the meta-analysis identified statistically significant effect sizes for three of the four scales: Total Problems (TP; ?.327; p = .003), Internalizing (INT; ?.314; p = .001), and Externalizing (EXT; ?.192; p = .040). The results for TP and INT were reliable as indicated by the fail-safe N and rank correlation tests. The effect size for the Total Competence (TCOMP; ?.054; p = .620) index did not reach statistical significance.
Limitations Limitations included methodological inconsistencies across studies and lack of a randomized control group design, yielding few studies for meta-analysis.
Conclusions The efficacy of CBT in the treatment of pediatric PTSD was supported by the annotated bibliography and meta-analysis, contributing to best practices data. CBT addressed internalizing signs and symptoms (as measured by the CBCL) such as anxiety and depression more robustly than it did externalizing symptoms such as aggression and rule-breaking behavior, consistent with its purpose as a therapeutic intervention.
Because they are integrating so few studies it is very difficult to have a sensitive meta-analysis in this case. However, that Professor Kowalik and her collaborators found differences at all is encouraging. I hope they’ll continue to follow this literature. Also, I hope researchers will be using other measures of outcomes and that those other measures will be examined in future integrative literature reviews, too.
Kowalik, J., Weller, J., Venter, J., & Drachman, D. (2011). Cognitive behavioral therapy for the treatment of pediatric posttraumatic stress disorder: A review and meta-analysis. Journal of Behavior Therapy and Experimental Psychiatry, 42, 405-413. doi:10.1016/j.jbtep.2011.02.002
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