Process Evaluation of the IDEFICS Intervention

Process evaluation is an essential part of intervention evaluation that is often overlooked or reported limitedly. This chapter explains in detail how the process evaluation within the IDEFICS study was developed and how the different measures were built. For each intervention module, different measures were developed to integrate multiple perspectives on the implementation. All measures were based on the framework of Linnan and Steckler (2002) to ensure a theory- and evidence-based approach. As process measures used in research are seldom reported in manuscripts, most of the measures were newly developed with the IDEFICS study itself. The measures itself are added to the chapter to share these instruments with other researchers so that they can build on our measures to develop their own.