Our district actually moved the OLSAT in the 3rd grade b/c they were finding the scores to be really far off that early. In fact, I had the same child score significantly different in 2nd grade vs. 3rd grade when they made this switch. I wouldn't put too much stock in the OLSAT as a single measure in the 2nd grade. That said, its not a bad measure to have if this child necessitates further testing later on.