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This short essay will help you share what you already know about the hazards of interpreting test results. “Do No Harm” is Jim Cox’s passionate precaution to educators about imprecision that is always present in test data. It is a layman’s lesson in the standard error of measurement, free of statistical language.
Jim is a well-known educator of educators, whose 35 years in California have enabled him to share his wisdom with educators in over 500 schools and districts. He is best known for making complex assessment riddles understandable. He is also the Owl Corps’ senior advisor.
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A navigational instrument that points toward the Earth's magnetic north pole.