This study aims to predict and explain self-silencing behavior in interpersonal relationships based on internalized object relations, with attentional bias as a mediator and rejection sensitivity as a moderator during emerging adulthood. Emerging adulthood (18–30 years) is a critical developmental period in which intimate relationships play a central role in identity formation, emotion regulation, and mental health. Self-silencing refers to the tendency to suppress or disregard one's thoughts, feelings, and personal needs in order to maintain relationships or avoid interpersonal conflict, and has been associated with depression, anxiety, low self-esteem, and poorer relationship quality. Drawing on object relations theory, the present study proposes that internalized relational patterns influence self-silencing through attentional bias toward negative emotional and social cues, while this relationship is moderated by rejection sensitivity.

This applied study employs a descriptive-correlational design using structural equation modeling (SEM). The target population consists of emerging adults aged 18–30 years who are currently involved in a meaningful interpersonal relationship. Participants will be recruited online using convenience sampling, and a minimum sample size of 280 individuals is planned. Research instruments include the Bell Object Relations Inventory (BORI), the Silencing the Self Scale (STSS), the Rejection Sensitivity Questionnaire (RSQ), and a computerized Dot-Probe Task to assess attentional bias. Participation will be entirely voluntary, electronic informed consent will be obtained from all participants, data will be collected anonymously and treated confidentially, and participants will have the right to withdraw from the study at any stage without any consequences.