Core-selective Evaluation Process is defined as a third-method model, or pattern of strengths and weaknesses model, approach to SLD identification. This session will discuss the history of SLD evaluation and explore C-SEP as an efficient model for planning and assessing for SLD. This approach to SLD identification is a third-method pattern of strengths and weakness (PSW) approach rooted in contemporary CHC theory and features the application of professional judgment, integrated data analysis techniques, and the use of statistical support to help guide decisions. The organizational framework of C-SEP is a set of sound educational practices logically interwoven to provide the most comprehensive, statistically sound, and legally defensible assessment of SLD. This presentation will further describe the organizational framework of C-SEP and distinguish C-SEP from other methods.