Journal article

An application of Extended Normalisation Process Theory in a randomised controlled trial of a complex social intervention: Process evaluation of the Strengthening Families Programme (10-14) in Wales, UK

Jeremy Segrott, Simon Murphy, Heather Rothwell, Jonathan Scourfield, David Foxcroft, David Gillespie, Jo Holliday, Kerenza Hood, Claire Hurlow, Sarah Morgan-Trimmer, Ceri Phillips, Hayley Reed, Zoe Roberts, Laurence Moore

SSM - Population Health | ELSEVIER SCI LTD | Published : 2017


Purpose: Process evaluations generate important data on the extent to which interventions are delivered as intended. However, the tendency to focus only on assessment of pre-specified structural aspects of fidelity has been criticised for paying insufficient attention to implementation processes and how intervention-context interactions influence programme delivery. This paper reports findings from a process evaluation nested within a randomised controlled trial of the Strengthening Families Programme 10-14 (SFP 10-14) in Wales, UK. It uses Extended Normalisation Process Theory to theorise how interaction between SFP 10-14 and local delivery systems - particularly practitioner commitment/cap..

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Awarded by National Prevention Research Initiative

Awarded by British Heart Foundation

Awarded by Cancer Research UK

Awarded by Economic and Social Research Council

Awarded by Medical Research Council

Awarded by Welsh Government

Awarded by Wellcome Trust

Awarded by Chief Scientist Office at the Scottish Government Health Directorates

Awarded by Chief Scientist Office

Funding Acknowledgements

The research was funded by the National Prevention Research Initiative (; Award no. G0802128). Funding partners are: Alzheimer's Research Trust; Alzheimer's Society; Biotechnology and Biological Sciences Research Council; British Heart Foundation; Cancer Research UK; Chief Scientist Office, Scottish Government Health Directorate; Department of Health; Diabetes UK; Economic and Social Research Council; Engineering and Physical Sciences Research Council; Health & Social Care Research & Development Office for Northern Ireland; Medical Research Council; The Stroke Association; Welsh Government; and World Cancer Research Fund. The Welsh Government provided c.675k pound of partnership funding, to cover the cost of implementation in three trial areas, and the associated training and support provided by the Cardiff Strengthening Families Programme team. Further support from Welsh Government provided 208 pound k to cover programme delivery in six trial sites from August 2011-July 2012. The Cardiff Strengthening Families Programme team also provided financial support for programme delivery and trial recruitment in schools.The work was undertaken with the support of The Centre for the Development and Evaluation of Complex Interventions for Public Health Improvement (DECIPHer), a UKCRC Public Health Research Centre of Excellence. Joint funding (MR/KO232331/1) from the British Heart Foundation, Cancer Research UK, Economic and Social Research Council, Medical Research Council, the Welsh Government and the Wellcome Trust, under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged.Laurence Moore was funded by the Medical Research Council (MC_UU_12017/14) and Chief Scientist Office at the Scottish Government Health Directorates (SPHSU14). SEWTU is funded by Welsh Government. We would like to thank all of the families and practitioners who took part in the study. The authors would like to thank two anonymous reviewers for their valuable comments and suggestions.