What does it take to scale-up a complex intervention? Lessons learned from the Connect-Home transitional care intervention.

AIMS

To discuss the multiple phases of research done to plan for wide-scale implementation (i.e. scale-up) of Connect-Home, a complex nurse-develop intervention. Barker et al.'s (Implementation Science, 2016, 11, 12) framework for intervention scale-up is applied to address the methods used to answer the following four questions: 'Who' needs to be involved in scale-up? 'What' intervention and implementation strategies need to be taken to scale? 'How' will scale-up be achieved? And what contextual factors influence 'when' scale-up is or is not successful?

DESIGN

Discussion paper.

DATA SOURCES

Data sources include the experience of our research team, supported by literature and theory. The Connect-Home team conducted multiple research studies to plan for Connect-Home scale-up. Early studies (2008-2015) focused on formative work to design the Connect-Home intervention. Recent studies have involved successive pilot tests of Connect-Home's effectiveness, implementation, and scale-up (2015-2019).

IMPLICATIONS FOR NURSING

This article describes a systematic approach that nurse researchers can apply to plan for taking their interventions to scale.

CONCLUSIONS

Planning for scale-up early in the process of intervention development is essential to speeding the translation of effective interventions into wide-scale practice.

IMPACT

This article details the methods that nursing researchers applied to develop and test the strategies needed to plan for taking a complex intervention to scale across multiple settings. The methods described are applicable to nursing and other health researchers' development and scale-up of any complex intervention.