Abstract This study aims to evaluate the reliability and validity of the Very Short Forms of the Children’s Behavior Questionnaire (CBQ-VSF) among preschoolers in Sabah, Malaysia. The CBQ-VSF is specifically designed to assess children’s temperament and has undergone adaptations for use in various regions. However, its application within the preschool population of Sabah remains unexplored. In this study, the sample comprised 255 mothers of children aged 4 to 6 years. Data were collected through an online questionnaire targeting children’s behaviors. Findings suggest that the CBQ-VSF exhibits reliability and validity among respondents in Sabah, thereby establishing its suitability for evaluating temperamental traits in preschoolers. This research contributes to advancing our understanding of temperament assessment during early childhood and emphasizes the significance of culturally validating assessment tools for diverse populations. ...