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The webinar provided an overview of survey methodology data issues. It was designed to help participants improve their knowledge about survey development and testing, representativeness, and response rates related to family surveys in Part C and Part B. The webinar was designed for individuals involved in measurement of Indicators C4 and B8 and those interested in survey methodologies as part of the SSIP.

In this webinar, which IDC staff presented for the University of Tennessee’s Boling Center for Developmental Disabilities, we first discuss the requirements in the IDEA related to disproportionality, describe methods for calculating disproportionality, and present data, both at the national level and for the state of Tennessee. The second part of the webinar introduces a research-based guidance document and self-assessment rubric designed to help schools and districts identify the root causes of "success gaps."