Craike, Melinda ORCID: 0000-0002-7374-1286, Bartlett, Larissa ORCID: 0000-0003-0474-8107, Mowle, Amy ORCID: 0000-0002-0272-9044, Riley, Therese ORCID: 0000-0003-1444-6890, Krahe, Michelle ORCID: 0000-0002-3223-7825 and Klepac, Bojana ORCID: 0000-0002-9141-1862 (2024) Development and testing of the capacity of organisations for system practices scale. Health Promotion Journal of Australia. ISSN 1036-1073

Abstract

Background: Systems change approaches are increasingly adopted in public health to address complex problems. It is important that measures of systems change be developed so that the effects of systems change on health outcomes can be evaluated. Organisational practices are potential levers for systems change. However, robust measures of organisational capacity to engage in these practices are lacking. Informed by the Theory of Systems Change, we developed and tested the Capacity of Organisations for System Practices (COSP) scale. The COSP scale comprises four inter-related system practices within organisations—adaptation, alignment, collaboration and evidence-driven action and learning. Methods: We applied a three-stage process: (1) Item generation; (2) Scale pre-testing; and (3) Structural analyses. Item response theory tests and semantic review, together with factor analytic techniques, were applied to refine the item set and determine the scale structure. Results: An initial pool of 97 items was generated and pre-tested with six content experts and four target audience representatives. Modifications resulted in 60 items. In total, 126 participants provided data for the structural analysis. A second-order hierarchical four-factor model fit the data better than the more basic correlated factor model (Δχ2 = 1.758, p =.415). The fit indices for the final 31-item model were acceptable (RMSEA =.084, TLI =.819). Conclusions: The COSP scale is ready for further testing to ensure construct validity, stability and utility. So What?: Once validated, the Capacity of Organisations for System Practices (COSP) scale has the potential to advance the theory and practice of systems change approaches.

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