Why are grade level mean RIT, growth projections, or percentiles different between reports and norms documents?

If you have set custom weeks of instruction for your school or district, the grade level mean RIT, growth projections, and percentiles are customized based on your organization's testing schedule. Generic NWEA documentation assumes the default weeks of instruction: 4, 20 and 32 weeks of instruction for fall, winter and spring testing respectively, and 36 weeks for the next academic year.

You can see the weeks of instruction in the upper right corner of most reports:



See also:

• MAP Growth: Where can I find the Norms Study and related documents?
• Modifying instructional weeks