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Measuring Principals' Effectiveness: Results from New Jersey's Principal Evaluation Pilot


  • Christine Ross
  • Mariesa Herrmann
  • Megan Hague Angus


New Jersey’s principal evaluation pilot, which took place in 14 diverse school districts in 2012/13, provides information on the extent to which measures to evaluate principals fairly and accurately differentiate principal performance. Principal practice ratings and schoolwide student achievement growth vary across principals and thus have the potential to distinguish effective and ineffective principals. However, schoolwide student achievement growth changed little at schools that changed principals and was lower at schools with more disadvantaged students. Information about the properties of the evaluation measures can inform modifications of the principal evaluation system or revisions to the guidance that the state provides districts.

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  • Christine Ross & Mariesa Herrmann & Megan Hague Angus, "undated". "Measuring Principals' Effectiveness: Results from New Jersey's Principal Evaluation Pilot," Mathematica Policy Research Reports 20bb92f22136410c85022f992, Mathematica Policy Research.
  • Handle: RePEc:mpr:mprres:20bb92f22136410c85022f992194451c

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    Evaluation; Principals; States;

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