| Sumario: | myAccessibleHome is a home safety screening and intervention app developed to be used by PwD, aging adults, support persons, and stakeholders vested in facilitating improved community living outcomes in home-dwellers desiring to age-in-place. This study describes the iterative development process and content validation of myAccessibleHome. App development involved participatory action research (PAR) methodology and engaged PwD, caregivers, and contractors (N = 6) as part of the core research and development team. For content validity, an expert panel (N = 7) and target population end-users (N = 15) completed a web-based survey which evaluated relevance and clarity. Item and scale content validity (I-CVI, S-CVI) indices were calculated. The PAR team and content validation process contributed to iterative and ongoing refinement of content, design, and features of myAccessibleHome. For the expert panel, mean I-CVI was 0.96 [0.57–1.00] for relevance and 0.89 [0.29–1.00] for clarity. The S-CVI was 0.93. For target population end-users, mean I-CVI was 0.64 [0.40–0.87] for relevance and 0.82 [0.53–0.93] for clarity. Items were removed and revised based on respondent feedback. Engaging potential end-users in PAR and content validation studies contributed to myAccessibleHome matching wants and needs of targeted end-users.
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