Individuals with Disabilities Education Act – IDEA Autism Spin Versus Autism Trends: Rising Prevalence in Black and Hispanic Children Thousand-Fold Increase in Autism Prevalence since the 1930s The Special Ed Epidemic: What Happens When They Age Out of School? Part 3 of 4. The Special Ed Epidemic: Burying Our Heads and Crippling Our Economy. Part 2 of 4.