This year 3 student shows typical results where a student starts off with poor reading ability compared to their chronological age, then over time, shows marked improvement. The slope of the green reading age data, compared to the slope of the chronological ages, shows a faster rate. After performing a find for year 4 students, this graph shows the average performance for all year 4 students. Four years ago their averaged reading age level was below their averaged chronological age. After the first year of intervention, their average reading age started to overtake their average chronological age. Their achievement has continued to stay ahead.
This student's growth rate for reading shows his achievement has always been ahead of his actual chronological age throughout all testing periods. The most recent test (3/9/05) shows he has reached the 12 year limit of the norms. We consider the 12 year old point to be consistent with that of an average adult reading level. That is, the average 12 year old should be able to read general reading matter such as that available to the general adult community e.g. newspapers, magazines, web pages, instruction booklets etc... This student shows poor spelling ability. In fact, the graph shows a period (4) where the student's spelling ability went backwards. This could happen due to a number of reasons such as possible cheating at previous testing occasions, small incremental improvements where months and not years feature (SEM may influence) or simply a case of the student failing to apply effort. Although the student is making progress in line with their chronological age, even when allowing for a SEM of 4 months, this student continues to be about a year behind.

Please note names are fictitious. Graphs shown here are provided as possible examples only so you may understand their functionality. You will see that the graphs display results over a 3 year period, which means testing would have occurred twice per year.