Standard Errors of Measurement at Different Ability Levels SCAT
- Author(s):
-
Lord, Frederic M.
- Publication Year:
- 1984
- Report Number:
-
RR-84-08
- Source:
-
ETS Research Report
- Document Type:
- Report
- Page Count:
- 15
- Subject/Key Words:
-
Error of Measurement,
School and College Ability Tests (SCAT),
Statistical Analysis,
Statistical Bias,
Testing Problems
Abstract
Four methods are outlined for estimating or approximating from a single test administration the standard error of measurement of number-right test score at specified ability levels or cutting scores. The methods are illustrated and compared on one set of real test data. (15pp.)
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