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Effectiveness of culturally adapted Strengthening Families Programme 6-11 years among Portuguese families

Cátia C. A. Magalhães (ESEV –IPV, Polytechnic Institute of Viseu, Viseu, Portugal)
Karol L. Kumpfer (Department of Health Promotion and Education, University of Utah, Salt Lake City, Utah, USA and Alta Institute, Salt Lake City, Utah, USA)

Journal of Children's Services

ISSN: 1746-6660

Article publication date: 15 June 2015




The purpose of this paper is to compare the outcomes from the Portuguese Strengthening Families Programme (SFP) with those from other countries to see if they are equally effective despite the new context. SFP was selected for cultural adaptation because comparative effectiveness reviews find that SFP is the most effective parenting and family intervention (Foxcroft et al., 2003, 2012). Standardised cultural adaptations of SFP have resulted in successful outcomes in 35 countries.


The outcomes for the SFP six to 11 years Portuguese families (n=41) were compared to the SFP six to 11 years international norms (n=1,600) using a quasi-experimental, non-equivalent control two group pre- and post-test design. A 2×2 ANOVA generated the outcome tables including p-values and Cohen’s d effect sizes. Standardised test scales were used and measured 21 parenting, family and child risk and protective factors.


Statistically significant positive results (p < 0.05) were found for 16 or 76.2 per cent of the 21 outcomes measured for Portuguese families. The Portuguese effect sizes were similar to the SFP international norms for improvements in the five parenting scales (d=0.61 vs 0.65), five family scales (d=0.68 vs 0.70) and seven children’s scales (d=0.48 vs 0.48) despite these norms having larger effect sizes than the USA norms. Hence, the cultural adaptation did not diminish the outcomes and SFP Portuguese families can benefit substantially from SFP participation.


A Portuguese culturally adapted version of SFP had never been developed or evaluated; hence, this paper reports original findings.



Magalhães, C.C.A. and Kumpfer, K.L. (2015), "Effectiveness of culturally adapted Strengthening Families Programme 6-11 years among Portuguese families", Journal of Children's Services, Vol. 10 No. 2, pp. 151-160.



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