Using mixed methods research to study research integrity: Current status, issues, and guidelines.

Background: The multifaceted nature of research integrity (RI) calls for the adoption of innovative methodologies to achieve a more thorough understanding. Mixed methods research (MMR) provides a valuable framework by combining diverse data sources, enabling a more nuanced exploration of complex research questions.Methods: This paper reviews seven RI studies employing MMR to identify methodological shortcomings. It introduces key concepts and typologies of MMR and proposes actionable strategies to enhance methodological rigor and innovation.Results: The review identified three key issues in current MMR applications: 1. Insufficient articulation of methodological contributions. 2. Limited visualization of quantitative and qualitative data integration. 3. Minimal engagement with recent MMR advancements. To address these gaps, a targeted To-Do List was created, offering actionable strategies for improving methodological rigor. Additionally, underutilized MMR designs, such as convergent and exploratory sequential designs, were recommended to strengthen data synthesis and expand analytical perspectives.Conclusions: MMR provides valuable opportunities to enhance RI research. This paper offers practical guidance for adopting MMR, addressing methodological gaps, and fostering robust, integrative research practices.