How can you best explain to teachers why all growth projections are identical, for a student who is in the 15th percentile all the way up to the 82nd percentile?
Maggie, this is a great question and comes up more often than you might imagine. Growth projections are estimates based on the NWEA Norms Study. While it may look like an error it is not. Flattening of growth is a common pattern in many tests. If we consider that norms describe typical patterns observed in students across the country, we need to remember that “typical” in this instance refers to students at the 50th percentile. All growth norms, whether depicting changes in height, weight, or change in mathematics achievement are simply descriptions of typical and atypical behavior.
You have access to several resources related to the norms and the topic of growth. Within MARC, on the Reports page under Research there is a link to the Norms Study Resources. You’ll find an overview document and the 2015 Norms Study. In the MAP Help Center search for Growth Insights. Common questions and answers about MAP growth data located here.
Please let us know if you have additional questions!
Hello, Maggie. I'm Natalie Laderas, current Community Manager to the PD community. Thank you for posting your question. I'm fielding it to someone within NWEA to provide you with a response. I've also tagged your question so that others in the future can find it and its answer.
Hello, Maggie Ekrem, I wanted to check in with you briefly to see if Kathy's response answered your question. If it has, do go ahead and click on "Mark as assumed answered" at the bottom of your initial post. Thanks again for asking your question here in the community.
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