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A new method for assessing content validity in model-based creation and iteration of eHealth interventions
Nancy Kassam-Adams1, Meghan L Marsac, Kristen L Kohser
1Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA, United States. nlkaphd@mail.med.upenn.edu.
Journal of Medical Internet Research
|April 18, 2015
Summary
Content validity is crucial for effective eHealth interventions. This study introduces a feasible method to ensure intervention activities align with theoretical models and target populations, improving digital health tools.
Area of Science:
- Digital Health
- Intervention Development
- Psychological Health
Background:
- eHealth interventions offer opportunities to optimize and deliver health services.
- Ensuring eHealth intervention content aligns with theoretical models is vital for effectiveness.
- Content validity is proposed as a checkpoint to evaluate intervention activities against change mechanisms and target populations.
Purpose of the Study:
- Define content validity for model-based eHealth intervention development.
- Present a feasible method for assessing content validity in eHealth.
- Describe the implementation of this method in a Web-based intervention for children.
Main Methods:
- A 5-step method was developed to assess content validity in eHealth interventions.
- Experts rated intervention activities for relevance, effectiveness, and appropriateness.
- The method was applied during the development of the Coping Coach Web-based intervention.
Main Results:
- Fifteen experts evaluated 15 intervention activity-target pairings for the Coping Coach intervention.
- Content validity showed excellent relevance and good likely effectiveness and age-appropriateness.
- Two activities indicated a need for further review and potential revision.
Conclusions:
- Assessing content validity is a feasible and straightforward process for eHealth interventions.
- Results provide valuable information for ongoing development and optimization of digital health tools.
- This approach can guide the iterative improvement of eHealth interventions.
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