Standard Deviation (SD) - Psychometric Glossary

A measurement of the spread of test scores, with a larger standard deviation indicating that there is a wider dispersion away from the average. The purpose of standard deviation in psychometric testing is to offer an indication of the precision of the tests, with a low standard deviation being ideal.

See also:

Panel Interview, Personality Inventory / Profile / Test / Questionnaire, Psychometric Test Types

Other articles:

Standard Error of Measurement (SEm), Standardised Testing / Standardized Testing, Standards for Educational and Psychological Testing, Standard-Setting Study, Stanford-Binet IQ Test, Stress Interview, Supervised Test, Systematic Bias

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