The HEXACO Model is a personality framework that expands on the traditional Big Five model by adding a sixth dimension: Honesty-Humility. This model categorizes personality traits into six broad dimensions: Honesty-Humility, Emotionality, eXtraversion, Agreeableness, Conscientiousness, and Openness to Experience. Each dimension represents a range of traits that help describe individual differences in personality. Developed by researchers Kibeom Lee and Michael C. Ashton, the HEXACO Model is used in various fields, including psychology and human resources, to better understand behavior and predict outcomes in personal and professional settings. It emphasizes the importance of ethical behavior and interpersonal relationships in personality assessment.