The Optimal Number of Alternatives in Multiple-Choice Achievement Tests: Some Empirical Evidence for a Mathematical Proof.

Costin, Frank

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ERIC Number: EJ025242

Record Type: CIJE

Publication Date: 1970

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The Optimal Number of Alternatives in Multiple-Choice Achievement Tests: Some Empirical Evidence for a Mathematical Proof

Costin, Frank

Educ Psychol Meas, 30, 2, 353-8, Sum '70

Within the limitations of the present study, evidence is presented that the use of three-choice items improves the power and discrimination of tests. (PR)

Descriptors: Achievement Tests, Measurement Instruments, Measurement Techniques, Multiple Choice Tests, Test Construction, Test Reliability, Test Validity, Testing

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