Hi NJMom,
I'm not an expert, but I think I may have your answer, since I was also comparing the last two years SCAT interpretation. They note that the SCAT interpretation guide sent out this year is based on test taken between Sept 2008-March 2009. The interpretation guide from last year is based on actual test data between Sept 2007-March 2008 etc.
I liked that numerical table that they had in last year's SCAT guide, which allowed me to calculate how my DDs did percentile wise vs. other gifted grade peers who took the test. Now we are left to interpret the bar graph....
