The Role of Otrovert Personality Orientation in Mindfulness-Based Intervention Outcomes: A Randomized Controlled Trial

Personality-based differences play a critical role in determining individual responsiveness to psychological interventions; however, traditional personality models often fail to explain variability in mindfulness-based outcomes. Recently, the Otrovert construct, proposed by Kaminski (2025), has emerged as a novel personality orientation emphasizing adaptive self-regulation and context-sensitive engagement beyond the introversion–extroversion continuum. The present study aimed to examine the role of Otrovert orientation in influencing outcomes of a mindfulness-based intervention using a randomized controlled trial design. Participants were randomly assigned to either a mindfulness-based intervention group or a control group. Psychological outcomes related to well-being and emotional regulation were assessed at baseline and post-intervention. Otrovert orientation was measured using a newly developed Otrovert Orientation Scale grounded in contemporary theoretical perspectives. Findings are expected to contribute empirical evidence supporting the relevance of emerging personality frameworks in mindfulness research. The study offers methodological and theoretical insights for integrating personality innovation into intervention research.