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Verifying intervention fidelity procedures for a palliative home care intervention with pilot study results
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Fidelity (consistency of intervention implementation) is essential to rigorous research. Intervention fidelity maintains study internal validity, intervention reproducibility, and transparency in the research conduct. The purpose of this manuscript is to describe intervention fidelity strategies/procedures developed for a pilot study testing a new palliative care nursing intervention (FamPALcare) for families managing advanced lung disease. The procedures described herein are based on the fidelity best practices recommendations from the NIH Consortium. An evidence-based checklist guided observational ratings of the fidelity procedures used and the intervention content implemented in each intervention session. Descriptive data on how participants understood (received), enacted, or used the intervention information were summarized. The fidelity checklist observational scores found =93% of the planned intervention content was implemented, and the fidelity strategies were adhered to consistently during each intervention session. The small variation (7%) in implementation was expected and related to participants' varying experiences, input, and/or questions. The helpfulness scale items include participants' ability to use home care resources, to anticipate and manage end-of-life symptoms, and to use Advance Directive forms. The high ratings (M = 4.4) on the 1-5 (very helpful) Likert Helpfulness Scale verified participants utilized the information from the intervention. Furthermore, there was an improvement in patients' breathlessness scores and completion of Advance Directive forms at 3 months after baseline. It is essential to plan intervention fidelity strategies to use throughout a study and to report fidelity results.
http://dx.doi.org/10.1002/nur.22166
Voir la revue «Research in nursing and health»
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