Why do I see the same math growth projection for all of my 5th grade students?

Document created by Community User on Oct 30, 2017Last modified by Community User on Oct 30, 2017
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Question
Why do I see the same math growth projection for all of my 5th grade students?

Answer
In most subjects, the general pattern that we see for normative growth between fall and spring is that students with lower initial fall scores tend to show higher typical (i.e., average) growth than students with higher initial RIT scores. This is generally true in math, but grade 5 shows an essentially constant growth trajectory across the achievement spectrum. This can be seen in the figure below, which shows typical math growth between fall and spring for grades K through 10 as a function of initial achievement. This graph was created by the NWEA Research team based on data from the 2015 Norms Study. The data can be found in Appendix D of the study. See MAP Growth: Where can I find the Norms Study and related documents?
 
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All growth norms -- whether those norms depict changes in height, weight, or change in mathematics achievement -- are simply descriptions of typical and atypical behavior. They convey the patterns that have been observed in students across the country. Fairness is not a consideration in the development of norms. They describe what does occur, not what should occur or what ought to occur.

 
Why does this happen with 5th grade math in particular?

This pattern of "flat growth" has been found in the norms study for many years, but it is hard to answer why it occurs. It may be because 5th grade marks the transition point at which most students transition from the 2-5 version of MAP Growth to the 6+ version. These two versions have very different content because they are aligned to the common core standards, which differ strongly between elementary and middle school grades.

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000003014

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