Module 4 is the fourth of five modules developed to assist school districts and charter schools in the identification of students with dyslexia. This module is designed to provide the knowledge necessary to interpret both quantitative (formal) and qualitative (informal) data used, in compliance with federal and state guidelines, to identify students with dyslexia. Specifically, the participant will understand the significance of quantitative data from normed assessment scores. The role that qualitative data plays when used with quantitative test scores in helping a Section 504 committee determine the identification of dyslexia, will also be reviewed.