Examlex
We convert the estimate into the corresponding value of the z or t test statistic by dividing the difference between
and the hypothesized difference
by the standard error of the estimator
.
Stanine
A method of scaling test scores on a nine-point standard scale with a mean of five and a standard deviation of approximately two, used to simplify the interpretation of test results.
Normal Curve
A bell-shaped curve that represents the distribution of a set of data where most occurrences take place in the middle of the range.
Standard Deviation
A statistical measurement that quantifies the dispersion or spread of a set of data points around the mean.
Raw Scores
A raw score is the initial, unadjusted score obtained directly from the number of questions answered correctly on a test or assessment.
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