But no solid evidence indicates “Specifically, students with disabilities represented 8 to 12 percent of all students at 23 percent of charter schools compared to 34 percent of traditional public schools. However, when compared to traditional public schools, a higher percentage of charter schools enrolled more than 20 percent of students with disabilities.” “Charter Schools: Additional Federal Attention Needed to Help Protect Access for Students with Disabilities,” US Government Accountability Office, June 7, 2012, https://www.gao.gov/products/GAO-12-543.
The source is easier to understand in the full report at
https://www.gao.gov/assets/600/591435.pdf
Still more information from U.S. Government Accountability Office:https://www.gao.gov/search?q=charter+schools&rows=10&now_sort=score+desc&page_name=main
