ED F 3080 Lecture Notes - Lecture 5: Stanford Achievement Test Series, Standardized Test, Reference Group
31 Oct 2017
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Why should you understand standardized tests: they are mandatory, to help you better prepare your students, they can provide feedback to guide your professional development, bottom line you need to understand this stuff. Norm vs. criterion referenced: norm referenced, allow us to compare to a nationally or state representative norm. Groups: criterion referenced, allow us to compare on state or nationally set standards. Norms in standardized testing: test performance of a representative sample, frame of reference for norm-referenced evaluation, assumed to follow a norm distribution, students" (cid:498)scores(cid:499) tell us their position relative to the norming sample (norm group) Percentile scores: the percentage of people in the norm group the person did as well as or better than, most commonly used, not the same as percent correct, the percentile rank is within a particular reference group. T-scores just convert this meaning so mean changes from 0 to 50. Problems score distributions from the grade above and below.
