Professor Souraya Sidani
Menzies Health Institute Queensland
Optimising Health Outcomes Seminar
Process evaluation: an overview
Evaluations of simple and complex interventions have focused on determining their impact on outcomes. However, the validity of these studies' results has been questioned as they fall short of demonstrating that the intervention is implemented as designed by therapists; is well received and adhered to by patients; and actually triggered the mechanism underlying its effects on outcomes. Deviations in the implementation of the intervention could weaken its impact, erroneously leading to its abandonment. To address these shortcomings, it is highly recommended to design intervention evaluation studies so that they incorporate: 1) Strategies to promote the implementation of the intervention with fidelity (i.e. developing an intervention protocol; training therapists; monitoring delivery of the intervention); 2) Process evaluation, which involves assessment of therapists' performance (fidelity of implementation), patients' adherence to the intervention dose and treatment recommendations as well as satisfaction with treatment, and contextual factors that hindered or facilitated fidelity, adherence and satisfaction; and 3) analysis of data to examine the linkage between processes and outcomes. This seminar will review the importance, the elements, and research approaches and methods for conducting process evaluation within intervention studies.
Souraya Sidani, PhD, is Full Professor and Canada Research Chair in the Design and Evaluation of Patient-Centred Health Interventions, School of Nursing, Ryerson University. Her areas of expertise are in quantitative research methods, intervention design and evaluation, treatment preferences, patient-centred care, and measurement. She received funding, as principal or co-investigator, for over 100 studies (about $12 million) that focused on evaluating interventions; examining patient preferences for treatments; refining research methods and measures for determining the clinical effectiveness of interventions; and evaluating the contribution of the nurse practitioner role. She has published peer-reviewed articles related to the design, implementation, and evaluation of health interventions, and alternative research designs (e.g. preference trials) and methods (e.g. protocol for cultural adaptation of interventions; measures of patient-centred care). Her recent books on intervention design, implementation and evaluation, and on conventional and innovative research methods for evaluating health interventions are used in graduate levels courses, worldwide.
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