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Novel programs, international adoptions, or contextual adaptations? Meta-analytical results from German and Swedish intervention research
© Hasson et al; licensee BioMed Central Ltd. 2014
- Published: 7 July 2014
- Cultural Adaptation
- Implementation Research
- International Program
- German Sample
- Program Type
One issue that remains to be solved in implementation research is adherence or adaptation dilemma [1, 2]. In essence, this concerns to what degree and how evidence-based programs can be modified in accordance with restraints and possibilities in local context. This study compares effectiveness of program constructions (i.e., novel programs, adopted from other contexts with or without adaptations) in two meta-analytic data sets in two European countries.
Results are based on studies evaluating German child and youth preventative interventions (n=158), and Swedish psychological and social interventions (n=139). Interventions were categorized with three broad-band categories (novel programs, international adoption, and adaptation) and six sub-categories (innovation, conceptually new, adoption, cultural adaptation, pragmatic adaptation, and eclectic adaptation). All studies were coded by a trained coder followed by a second independent coding. The effect size of the outcomes of these program types were compared.
Novel programs, i.e. completely or conceptually new national programs, were the program type with the highest effect size in the German sample and among the highest in the Swedish sample. In both samples, international programs adopted without any adaptations were the least effective, even after controlling for crucial methodological aspects (design, sample size). Although adoptions proved to be effective (significantly different from zero), they were not as effective as the adapted or novel programs.
The results favor novel and adapted programs and indicate that adoption of transported, international programs should not be done without considering adaptation. Adaptations justified explicitly for cultural reasons were more effective than international adopted programs without adaptations. This adds to the prior literature, which has shown contradictory results regarding the effects of cultural adaptations . With respect to the high effect size for novel programs, it may be that a novel program encompasses the greatest possible fit to the context where it takes place. Novel programs may even involve tailoring the program to the needs of the specific setting, compared to internationally transported programs that are originally developed for another context.
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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.