This investigation examines the development process for student models to support intelligent tutoring systems, cognitive training, and cognitive research. Specifically, the investigation will survey current methodologies in student model development to determine more efficient means to use cognitive task analysis data for the definition of student models. The student models are being developed to improve performance evaluation in cognitive training and research programs. An important aspect of this research will be to identify student model development techniques that are largely independent of the tutoring or expert system it supports. The research will culminate in a plan for evaluating the student performance development methodology including the development of a prototype student performance model.