Three Coefficients for Analyzing the Reliability and Validity of Ratings.

Aiken, Lewis R.

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Peer reviewed

ERIC Number: EJ314664

Record Type: CIJE

Publication Date: 1985

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Three Coefficients for Analyzing the Reliability and Validity of Ratings.

Aiken, Lewis R.

Educational and Psychological Measurement, v45 n1 p131-42 Spr 1985

Three numerical coefficients for analyzing the validity and reliability of ratings are described. Each coefficient is computed as the ratio of an obtained to a maximum sum of differences in ratings. The coefficients are also applicable to the item analysis, agreement analysis, and cluster or factor analysis of rating-scale data. (Author/BW)

Descriptors: Computer Software, Data Analysis, Factor Analysis, Item Analysis, Probability, Rating Scales, Sample Size, Test Reliability, Test Validity

Publication Type: Journal Articles; Reports - Research; Numerical/Quantitative Data

Education Level: N/A

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Language: English

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