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Reliability (statistics)

In statistics and psychometrics, reliability is the freedom of a measure from measurement error. In Classical Test Theory, reliability is the proportion of the observed test score variation due to "true" score variation. A measure with high reliability tends to produce similar measurements under consistent conditions:

Measurement, Estimation & Types

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Overview

Types

Difference from validity

General model

Item response theory

Estimation

Ideal reliability level and how to increase reliability

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Map overview Semantic statistics

Reliability (statistics)

Nodes34
Edges33
Triples0
Avg. degree1.94
Density0.058824
Components1

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Important terminology

reliability test scores measurement true error items measure forms errors two one reliable different used example consistency validity estimate score

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SubjectPredicateObjectConfidenceSrc

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