What does NCE stand for in educational measurement?

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What does NCE stand for in educational measurement?

Normal Curve Equivalency is a score scale used in educational measurement. It transforms performance into a normal-curve–based metric that ranges roughly from 1 to 99, with 50 representing the average of the norm group and about 21 points as the standard deviation. Because the scores are on an equal-interval, normally distributed scale, you can compare across different tests or grades and track growth over time more consistently than with raw scores or simple percentile ranks. This makes NCE useful for cross-grade comparisons and longitudinal interpretation, even though it’s not as commonly interpreted for individual decisions as other scales.

Normal Curve Equivalency is a score scale used in educational measurement. It transforms performance into a normal-curve–based metric that ranges roughly from 1 to 99, with 50 representing the average of the norm group and about 21 points as the standard deviation. Because the scores are on an equal-interval, normally distributed scale, you can compare across different tests or grades and track growth over time more consistently than with raw scores or simple percentile ranks. This makes NCE useful for cross-grade comparisons and longitudinal interpretation, even though it’s not as commonly interpreted for individual decisions as other scales.

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