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October 15, 2015

What educators need to know about measurement error

At my first introduction to measurement error, the word error gave me pause, and I silently wondered what good could possibly come from it. To most of us, an error usually means something is terribly wrong! It doesn’t help either […]
July 10, 2014
teacher lecturing

Understanding the reliability and validity of test scores

 Toward the end of my master’s degree program, I called my parents and excitedly announced that I was entering a doctoral program in psychometrics. A few uncomfortable moments later, my father responded, “That sounds…interesting.” Encouraged, I explained that a big […]

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