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Peer reviewed Peer reviewed
ERIC Number: EJ262598
Record Type: CIJE
Publication Date: 1982
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
On Test Homogeneity and Maximum KR-20.
Raju, Nambury S.
Educational and Psychological Measurement, v42 n1 p145-52 Spr 1982
A necessary and sufficient condition for a perfectly homogeneous test in the sense of Loevinger is stated and proved. Using this result, a formula for computing the maximum possible KR-20 when the test variance is assumed fixed is presented. A new index of test homogeneity is also presented and discussed. (Author/BW)
Descriptors: Mathematical Formulas, Mathematical Models, Multiple Choice Tests, Test Reliability
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Kuder Richardson Reliability Formulas; Test Homogeneity; Variance (Statistical)