We just received the results of our DS's first go with the ERB CTB 4 test. Great results....his school only utilized a comparison against the National Norm. They could have chosen to also compare against Suburban Public Schools and also Independent Schools...both of which would generally score higher than the National Norm. I have spent the last 2 hours trying to search for more information. Very little of what I am looking for has popped up. They convert raw scores to scaled scores...does anyone know what the maximum scaled scores are? Are they the same for each Test area? The test I am looking to compare is a Grade 4 Level 4. As an example, his scaled score for verbal reasoning is 399....percentile rank is 99, Stanine is 9...can anyone tell me what the percentile and stanine would be for the other two norms?
