2009 SDMT Scores

The 2009 SDMT Scores are in for PWC.  As before, they present a mixed bag of results with some scores up and others down.  They also raise more questions than answers, questions I hope the school board asks of school administration.

Click here for PWC-2009-SDMT results.

This article provides the scores only, with questions and discussion presented in a later article. Because the scores are a little confusing, here are some definitions and background.

The SDMT was mandated when Investigations was selected.  In 2007 it was given for the first time to all 1st and 2nd grade students.  In 2008 and 2009 it was given to a “randomly selected representative sample of 1st and 2nd grade students”.

SDMT results are presented as a raw score, national percentile rank, and stanine.

  • The raw score is the number of questions the student got correct.
  • The national percentile rank is where the student’s score ranks relative to other students who took the exam.  For instance, if 100 students took the exam and 1 got a perfect score, that student would be in the 99th percentile.  If 1,000 students took the exam and 100 got perfect scores, those students would all be in the 90th percentile.
  • Stanine’s classify students into groups based on their national percentile rank.  There are 9 stanines – 1 ,2 , and 3 are below average; 4, 5, and 6 are average; and 7, 8, and 9 are average.

Students are tested on two broad categories, concepts & applications and computation, and results are presented for these categories and their sub-tests.

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One Response to “2009 SDMT Scores”

  1. Three Years of TERC – Where Are the Problems? « PWC Education Reform Blog Says:

    […] Grades 1 and 2 subtraction was our area of greatest weakness based on the data from the SDMT (see here). There were 4 questions on the SOL for Grade 3 and 4 relating to subtraction. Three of the four […]


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