Data collected from aimswebPlus assessments, including the rate of improvement (ROI) are powerful tools to assess whether students are making academic progress. ROI has long been a component of classic reporting, in individual progress monitoring reports and in local and national norm tables.
To make ROI even more valuable, aimswebPlus includes student ROI growth norms that will allow schools to evaluate the progress of individual students relative to the rate of growth shown by similar students in a national norm sample.
Student ROI Growth Norms
ROI growth norms are percentile norms that indicate the percentage of students in the large, representative national norm sample who had ROI equal to or smaller than a particular ROI. Because growth rates vary by initial performance level, these norms are most meaningful when the comparison group consists of other students who had a similar level of initial performance.
To be able to make such comparisons, five separate sets of ROI growth norms were developed for each grade and time interval (fall-winter, winter-spring, and fall-spring) that corresponds to five ranges of initial scores (very low, low, average, high, and very high).
Through the use of stratified comparison groups, the ROI growth norms can help teachers more accurately interpret each student’s progress and set realistic yet challenging goals.
ROI growth norms allow educators to complete the following tasks:
- Determine and report individual student growth by calculating a student’s ROI relative to the ROI of other students at the same grade and at a similar level of initial score
- Set meaningful and realistic progress monitoring goals
- Generate group growth reports which display the distribution of student ROI growth percentiles at the class, grade, school, and district levels
ROI growth norms are available for all measures and composite scores.