Examlex
Find the slope of the line determined by this pair of points.
Achievement Test
A type of ability test that measures what one has learned. Types of achievement tests include survey battery tests, diagnostic tests, and readiness tests.
Percentiles
A measure that indicates the value below which a given percentage of observations in a group of observations falls.
Stanines
Derived from the term “standard nines,” this is a standardized score frequently used in schools. Often used with achievement tests, stanines have a mean of 5 and a standard deviation of 2, and range from 1 to 9.
T-scores
Standardized scores with a mean of 50 and a standard deviation of 10, used to compare an individual's score against a normative sample.
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