Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory

IntroductionAlthough there has been some investigation into what works in suicide prevention, exploration into the mechanisms by which implementation strategies impact outcomes or how and why strategies work remains largely under-studied. Consequently, implementation efforts often lack a clear strat...

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Main Authors: Sadhvi Krishnamoorthy, Gregory Armstrong, Sharna Mathieu, Victoria Ross, Kairi Kõlves
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Health Services
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Online Access:https://www.frontiersin.org/articles/10.3389/frhs.2025.1473682/full
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author Sadhvi Krishnamoorthy
Gregory Armstrong
Sharna Mathieu
Victoria Ross
Kairi Kõlves
author_facet Sadhvi Krishnamoorthy
Gregory Armstrong
Sharna Mathieu
Victoria Ross
Kairi Kõlves
author_sort Sadhvi Krishnamoorthy
collection DOAJ
description IntroductionAlthough there has been some investigation into what works in suicide prevention, exploration into the mechanisms by which implementation strategies impact outcomes or how and why strategies work remains largely under-studied. Consequently, implementation efforts often lack a clear strategy, and may contribute little toward the desired outcomes. This study aims to explore and examine the role of context and mechanisms involved in the implementation of complex suicide prevention interventions.Methods and materialsIn-depth qualitative interviews were used to explore relevant stakeholder experiences of implementing complex suicide prevention interventions. Stakeholders (nine intervention leaders, five implementors and two lived experience advocates) from six interventions were purposively recruited for their experiences involved in implementing complex interventions in real-world settings. The Normalisation Process Theory translational coding manual was used to map data related to the primary and secondary constructs defined in the theory and its extensions.ResultsThree domains pertaining to implementation context, mechanisms, and outcomes (CMO) were explored. Participants expressed their agency by: using contextual influences to modify the design and plan for delivery; making adaptations to the form and function of interventions and characteristics of the implementation environment to suit intervention needs; and, leveraging the intervention environment to integrate the intervention into existing systems and practices. Activities and strategies served multiple mechanisms involved in: understanding what the work entails; who does the work; developing the capacity to implement the work; and, understanding the work. An interdependent and interacting relationship between mechanisms emerged. Outcomes related to: change in existing practices; the ways in which people are organised; changes in existing norms; and, incorporation of the intervention into daily practice were observed.ConclusionThis study is notable in its exploration of mechanisms underlying implementation of complex suicide prevention interventions. Data from this study can help inform the development, refinement and use of specific implementation strategies and understand the applicability of strategies across varied contexts. The study also demonstrates the use of an implementation theory to inform practice and potentially contributes to an understanding of what works, why, for whom and in what context. There is a need for a paradigm shift towards the use of more theory based and informed approaches to understand causal links between implementation strategies, context, mechanisms, and outcomes.
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spelling doaj-art-b1df274b91044e5192affa0bd631bf382025-08-20T02:57:00ZengFrontiers Media S.A.Frontiers in Health Services2813-01462025-08-01510.3389/frhs.2025.14736821473682Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theorySadhvi Krishnamoorthy0Gregory Armstrong1Sharna Mathieu2Victoria Ross3Kairi Kõlves4Australian Institute for Suicide Research and Prevention, World Health Organization Collaborating Centre for Research and Training in Suicide Prevention, School of Applied Psychology, Griffith University, Brisbane, QLD, AustraliaCentre for Mental Health and Community Wellbeing, The University of Melbourne, Carlton, VIC, AustraliaAustralian Institute for Suicide Research and Prevention, World Health Organization Collaborating Centre for Research and Training in Suicide Prevention, School of Applied Psychology, Griffith University, Brisbane, QLD, AustraliaAustralian Institute for Suicide Research and Prevention, World Health Organization Collaborating Centre for Research and Training in Suicide Prevention, School of Applied Psychology, Griffith University, Brisbane, QLD, AustraliaAustralian Institute for Suicide Research and Prevention, World Health Organization Collaborating Centre for Research and Training in Suicide Prevention, School of Applied Psychology, Griffith University, Brisbane, QLD, AustraliaIntroductionAlthough there has been some investigation into what works in suicide prevention, exploration into the mechanisms by which implementation strategies impact outcomes or how and why strategies work remains largely under-studied. Consequently, implementation efforts often lack a clear strategy, and may contribute little toward the desired outcomes. This study aims to explore and examine the role of context and mechanisms involved in the implementation of complex suicide prevention interventions.Methods and materialsIn-depth qualitative interviews were used to explore relevant stakeholder experiences of implementing complex suicide prevention interventions. Stakeholders (nine intervention leaders, five implementors and two lived experience advocates) from six interventions were purposively recruited for their experiences involved in implementing complex interventions in real-world settings. The Normalisation Process Theory translational coding manual was used to map data related to the primary and secondary constructs defined in the theory and its extensions.ResultsThree domains pertaining to implementation context, mechanisms, and outcomes (CMO) were explored. Participants expressed their agency by: using contextual influences to modify the design and plan for delivery; making adaptations to the form and function of interventions and characteristics of the implementation environment to suit intervention needs; and, leveraging the intervention environment to integrate the intervention into existing systems and practices. Activities and strategies served multiple mechanisms involved in: understanding what the work entails; who does the work; developing the capacity to implement the work; and, understanding the work. An interdependent and interacting relationship between mechanisms emerged. Outcomes related to: change in existing practices; the ways in which people are organised; changes in existing norms; and, incorporation of the intervention into daily practice were observed.ConclusionThis study is notable in its exploration of mechanisms underlying implementation of complex suicide prevention interventions. Data from this study can help inform the development, refinement and use of specific implementation strategies and understand the applicability of strategies across varied contexts. The study also demonstrates the use of an implementation theory to inform practice and potentially contributes to an understanding of what works, why, for whom and in what context. There is a need for a paradigm shift towards the use of more theory based and informed approaches to understand causal links between implementation strategies, context, mechanisms, and outcomes.https://www.frontiersin.org/articles/10.3389/frhs.2025.1473682/fullmechanismstheory-informedimplementation sciencesuicide preventioncomplex interventioncontext
spellingShingle Sadhvi Krishnamoorthy
Gregory Armstrong
Sharna Mathieu
Victoria Ross
Kairi Kõlves
Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
Frontiers in Health Services
mechanisms
theory-informed
implementation science
suicide prevention
complex intervention
context
title Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
title_full Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
title_fullStr Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
title_full_unstemmed Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
title_short Illuminating the “black box” of complex suicide prevention interventions: towards a theory of implementation using the normalisation process theory
title_sort illuminating the black box of complex suicide prevention interventions towards a theory of implementation using the normalisation process theory
topic mechanisms
theory-informed
implementation science
suicide prevention
complex intervention
context
url https://www.frontiersin.org/articles/10.3389/frhs.2025.1473682/full
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