WIAT-III ceiling:
Yes, there is a definite ceiling effect for high-performers, particularly in reading comprehension and oral reading fluency, which are item set-based, and don't have the usual basal and ceiling rules. No matter how high your level of functioning is, every child of a certain age/grade completes the same item set. (If you are below, there are drop-back rules, within some limits.) (And, btw, I would have given him the points for 4 or 5 o'clock, as long as he also indicated that it was p.m. Probably would have queried for that clarification, too.) Did she show you the difference between oral reading rate and accuracy? Sometimes that's an indicator of rushing or carelessness, when the rate is far above the accuracy.
ETA: I should also note that the ceiling for ORF gets lower as you get older, because of the natural ceiling for the skill. (Normative adult level oral reading fluency is not substantially different from early adolescent ORF. Pre-third grade ORF is much more varied than post-third grade/fluent reader level ORF.)
Last edited by aeh; 09/29/14 11:03 AM.
