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Category Archives: Blog

THE ABBY NORMAL (OR, IS IT NORMAL?) DISTRIBUTION AND WHAT IT REALLY MEANS

Ah, yes, well, it is the normal distribution! And, as a reminder, and if you will recall,  the previous posting (http://www.iephelp.com/2014/12/test-scores-mean-mean/) explained the "mean" from which all test scores are based and is key to the normal distribution. Different tests often report scores in a variety of ways and we want to understand what those…
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TEST SCORES: WHAT DOES MEAN, MEAN?

What was read on the internet: I like GE and AEs for all test scores and Lexile scores for reading. Parents can understand GEs and AEs a lot better than it is for them to comprehend Scaled Scores, Standard Scores and Percentiles. What should have been said: Part Two The Normal Distribution and the Mean…
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Grade Equivalents are NOT Grade Levels

Grade Equivalents Are NOT Equal To Grade Levels What was said on the internet: “I like GE and AEs for all test scores…scores for reading. Parents can understand GEs and AEs a lot better than it is for them to comprehend Scaled Scores, Standard Scores and Percentiles.” What should have been said: The results of…
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