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Which of the following is a type of standard score with a mean of 100 and a standard deviation of 15?1) Standard Score (SS), is defined as a mean of 100, with a standard deviation of 15 points. 2) Scaled score, is defined as a mean of 10 standard deviation of 3 points. 3) Z score, is defined as a mean of zero and standard deviation of 1 point. 4) T score, is defined as a mean of 50 a standard deviation of 10 points.
Which type of normalized standard score is widely used in education?Standard scores most commonly used in schools are T-scores, stanine scores, and normal curve equivalent (NCE) scores. T-scores have a mean of 50 and standard deviation of 10. Thus, a student with a T-score of 60 is one standard deviation above the mean.
Who developed one of the first scales to differentiate between children who could or could not function in a regular classroom?
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