Has your DS's speech (oral/motor) ever been evaluated?
I'm not familiar with IRLA, however, both Dibeles and Aimsweb say their measures are not suitable for children with speech fluency disorders (such as stuttering and apraxia).
While it may seem like common sense that oral reading fluency tests would be problematic for children with speech issues and therefore not an accurate measure of their reading ability, my DS's school doesn't get it. My DS stutters and has other speech disfluencies. Despite my pointing out the section in the Aimsweb manual that says the tests are inappropriate for DS and DS's well-documented history of stuttering and other speech difficulties, DS's school still insists on assessing his oral reading. I'm baffled why anyone would insist doing any assessment that you know going in cannot give a valid score, but that's another story.
