The results of a reading test show how well the reader is doing compared to other people who have taken that test. Results of standardized tests are given in a comparative form that ranks the test taker against others who took the test by grade or percentile.
Stanine scores are the simplest form of result, and rank results from low to high over nine standardized grades. Scores of above seven on this scale indicate above average performance. Percentiles give a more nuanced comparison by displaying the percentage of other test takers that performed less well than the person getting that result. Grade equivalent scores are created by comparing students in a range of grades and taking an average result per age group.