King’s Improvement Science


Free online resource launches to help researchers and practitioners measure the implementation outcomes of healthcare interventions

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Implementation science researchers at NIHR ARC South London and the University of East Anglia have developed a free online repository to help anyone implementing new ways of delivering healthcare to better understand and measure the outcomes of these changes.

The new resource, the Implementation Outcome Repository, brings together 55 instruments that have been developed and tested in physical healthcare settings to assess the success of new ways of delivering healthcare services.    

The 55 instruments were identified through a systematic review of the research literature. The researchers then carefully evaluated each instrument, assessing its precision and accuracy and how easy it is to use in practice.  

The repository is designed for anyone working on projects to implement changes in healthcare, including researchers, healthcare staff, managers, patients and service users, who want to quantitatively measure the outcomes of implementation.

The repository includes instruments that measure factors that influence implementation, for example, how acceptable an intervention or service is to staff and patients and how feasible it is to implement, and instruments that measure the effectiveness of implementation efforts, for example, the extent to which a change has been adopted across an organisation.

The repository allows users to:

  • Search for and compare instruments
  • View a summary of the instrument, including where and why it was developed
  • Examine the quality of the instrument and how easy it is to use
  • Where permission is granted, access the instrument.

The Implementation Outcome Repository has been developed by implementation and improvement science researchers at the NIHR ARC South London, based in the Centre for Implementation Science and King’s Improvement Science, King’s College London, working closely with researchers based in the Behavioural and Implementation Science research group at the University of East Anglia, with support from the NIHR ARC East of England.

Find out more about the Implementation Outcome Repository

The repository ( will be updated regularly. If you have developed or are aware of instruments currently not included, please email:

The repository is designed for teams who are familiar with the concept of ‘implementation outcomes’. If you are new to the field of implementation science, we recommend you read our Implementation Science Research Development (ImpRes) tool and guide to familiarise yourself with implementation outcomes and where they fit into an implementation study or project.

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