My child was just diagnosed with ASD. During the evaluation he had to take another WISC-V (he took it twice before, ~2 years between each). I am really surprised by how much his scores fluctuate between assessments. For example, on the same subtest he would score 17 and then the next time 7. Or vice-versa his score would go from 14 to 19. In the end he averages out around the same FSIQ. Is this fluctuation typical? Or does it have something to do with ASD? How much variability is "normal"?
PS. I am not concerned about his scores, I am just curious.
