Several unilinear and bilinear dimensional measurement models of Asian American acculturation and enculturation were tested with confirmatory factor analysis. Bilinear models of acculturation consistently outperformed the unilinear model. In addition, models that articulated multiple dimensions (i.e., values and behavior) exhibited a better fit to the data than did unidimensional models. The degree to which Asian Americans adhered to the values and behavior associated with each culture differed. Specifically, there was a small relationship between values and behavior in the Asian cultural orientation, whereas there was a moderate relationship between values and behaviors in the Western cultural orientation and between Asian behavior and Western behavior. Present findings suggest that the way in which Asian Americans negotiate the acculturation and enculturation process is likely nuanced and complex. Implications for working with Asian Americans and future directions for research are explored.