Psychometric Analysis and Cross-Cultural Adaptation of the Croatian Version of the Oral Health Values Scale (OHVS)

Background/Objectives: A person's values regarding oral health significantly shape their related behaviors and habits. Therefore, it is essential to systematically study this relationship and create reliable tools to assess perceptions of oral health values, which can inform evidence-based interventions and policy decisions. This study aimed to translate, culturally adapt, and validate the "Oral Health Values Scale" (OHVS) for use in the Croatian context. Methods: The process involved two key phases. First, an expert committee oversaw the translation to ensure consistency across all versions and produce a test-ready instrument. To identify any ambiguities in translation and test the instrument's reliability, a pilot study with 40 participants was conducted. Once the expert committee confirmed content validity, the finalized OHVS was administered to a sample of 702 Croatian adults to evaluate its psychometric properties. Results: Factor analysis revealed a three-factor structure in the Croatian version, differing from the original four-factor model, with items from the "Retaining Natural Teeth" subscale distributed across two factors. Results demonstrated strong internal consistency (Cronbach's α > 0.78) and test-retest reliability (ICC = 0.976, 95% CI: 0.955-0.987, p < 0.01), confirming the instrument's reliability. Conclusions: These results confirm the OHVS-CRO as a valid and reliable instrument for assessing oral health values, offering valuable insights into the perspectives of Croatian populations. This validation study provides a foundation for future research, supports culturally tailored interventions, and highlights the potential for the OHVS to inform oral health research and policy development both locally and globally.