(Guest post by Greg Forster)
Ed Week dives into details on the difficult issue of how special education counts get distorted by a variety of factors. The article gets into a lot of interesting issues that make it difficult to get a clear picture of how many disabled students are served by the program. See also here for the researchers’ take on the issue.
One factor not canvassed in the Ed Week story – unsurprisingly – is the role of financial incentives in public school special education programs. Public schools are incentivized to label studnets as disabled in order to access additional funding. Study after study after study after study has confirmed the empirical relationship between the presence and strength of these incentives and rising rates of special education diagnosis in public schools. Private schools have no such distorting incentive and will thus report lower numbers of disabled students. (All this is true regardless of whether you think the true rate of disabilities is higher, as in the public system, or somewhat lower, as in the private system.)