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Detecting and Preventing Fraudulent Participation in Qualitative Research: Content Analysis of Two Multisite Studies
Destiny Harden1, Nicolette Rodriguez2,3,4, Kristi Roybal5
1Clinical Translational and Epidemiology Unit, Mongan Insitute, Massachusetts General Hospital, 100 Cambridge Street, Boston, MA, 02114, United States, 1 617 724 9516.
Journal of Medical Internet Research
|July 3, 2026
Summary
Fraudulent participants pose a growing threat to qualitative and mixed methods research. This study identifies patterns of fraudulent activity and offers strategies for prevention and reporting to maintain research integrity.
Area of Science:
- Health Services Research
- Qualitative Research Methods
- Mixed Methods Research
Background:
- Web-based approaches for participant recruitment and data collection in health research have surged, particularly since the COVID-19 pandemic.
- While increasing accessibility, these online methods heighten the risk of fraudulent participants, a concern less explored in qualitative and mixed methods studies compared to quantitative research.
Purpose of the Study:
- To identify recurring patterns of fraudulent participation in qualitative and mixed methods research.
- To develop and propose actionable strategies for detecting, addressing, and reporting fraudulent activities in research studies.
Main Methods:
- Analysis of encounters with fraudulent individuals across two multisite qualitative and mixed methods research projects.
- Identification of common themes related to fraudulent participation and development of prevention and remediation strategies.
Main Results:
- Key indicators of fraud included high response volumes, repetitive email addresses, unusual phone number area codes, and atypical communication patterns.
- Imposter participants disrupted online focus groups, necessitating enhanced screening, identity verification, and response cross-checking.
- Actions taken involved notifying institutional review boards, recruitment platforms, and funders.
Conclusions:
- Fraudulent participants present a significant and evolving threat to the integrity and credibility of qualitative and mixed methods research.
- Real-time analysis of recruitment data and transparent reporting are crucial for mitigating risks.
- A collaborative, comprehensive approach involving stakeholders and the research community is essential for addressing fraudulent study participation.
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