Objective. Healthy Adult (HA) is an important schema therapy construct that represents the individual’s ’healthy’ state, characterized by balancing personal and others’ needs within a realistic perspective. We developed the Multidimensional Healthy Adult Scale to explore how various dimensions of the HA contribute to different aspects of well-being. This study aimed to test the factor structure and psychometric properties of the newly developed scale. Method. Data were collected from 114 (24.1%) male and 358 (75.5%) female participants between the ages of 18 and 60. The items of the scale were generated based on a qualitative study conducted in Türkiye. Results. Data were analyzed using Confirmatory Factor Analysis (CFA) and Structural Equation Modeling (SEM) with Lavaan to test the measurement and predictive models. CFA including Bond, Balance and Battle factors, as well as an overarching Healthy Adult, indicated that the measurement model fit the data well. SEM results also indicated a strong data fit. Low Balance scores were associated with higher psychopathological symptoms and negative affect, while high Battle scores correlated with greater life satisfaction and positive affect. Although Bond positively related to Balance and Battle, high Bond scores, when controlling for the others, may increase negative affect and psychopathological symptoms. Conclusions. These results provide evidence for a multidimensional structure of the HA. Further validation of the scale, as well as an exploration of the ambiguous role of bond, is needed in order to draw clear inferences for clinical practice.