Scholars within the field of counseling psychology have for some time now articulated eloquent and compelling calls for attending to social justice in the social sciences. To date, counseling psychologists have been at the forefront of addressing social justice issues in research, practice, and professional development. The present study advances empirical perspectives on social justice by testing the external validity of M. J. Miller et al.'s (2009) social-cognitive model of social justice interest and commitment in a sample of 229 doctoral trainees in counseling psychology. Present findings support the ability of the model to explain, in part, counseling psychology trainees' social justice interest and commitment. In addition, the present study provides novel findings that demonstrate the direct and indirect ways in which program training environment and personal moral imperative relate to social justice interest and commitment. Study limitations, future directions for research, and implications for training are discussed. (Contains 2 figures and 3 tables.)