The sibling dynamic of creativity: Development and validation of the Creativity Nurturing Behavior of Siblings (CNBS) scale on a specific population of sibling dyads

The current study developed and validated the Creativity Nurturing Behavior Scale (CNBS) to assess sibling interactions that foster creativity. It is specifically designed to capture the unique relational behaviors within a sibling dyad. The scale was grounded in theories of social learning, attachment, and creative cognition. A rigorous psychometric analysis, including exploratory and confirmatory factor analysis, demonstrated the scale's reliability and validity with a 32-item and eight-factor structure. Measurement variance across genders was established. Latent mean comparisons revealed significant gender differences in certain dimensions of sibling relationships. The scale's reliability and validity were established using a sample primarily consisting of multi-child, traditional family structures from India and Oman. The CNBS offers a tool for researchers to understand creativity development within this specific sibling dynamic of high family salience households. The scale showed a significant correlation with creativity performance. The CNBS provides a valuable tool for researchers and practitioners to understand and promote creativity development within the sibling dynamic of high family salience households. A key limitation of the CNBS is its current validated scope, which is not generalizable to single-child families, highly diverse family structures, or different macro-cultural contexts without further re-validation.