Document Type

Fact Sheet

Publication Date

Fall 2023


Data Note 86 shares a comparative overview of the different definitions of intellectual and developmental disability (IDD) from five national data sources on employment outcomes: National Survey of State IDD Agency Employment and Day Services; Rehabilitation Services Administration; American Community Survey; National Core Indicators; and Social Security Administration. The goals of this Data Note are to provide clarity about how each data source defines the IDD population and support readers’ understanding of the results from each source.



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