Some Critical Observations of the Test Information Function as a Measure of Local Accuracy in Ability Estimation.

Samejima, Fumiko

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Peer reviewed

ERIC Number: EJ497072

Record Type: Journal

Publication Date: 1994

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0033-3123

EISSN: N/A

Some Critical Observations of the Test Information Function as a Measure of Local Accuracy in Ability Estimation.

Samejima, Fumiko

Psychometrika, v59 n3 p307-29 Sep 1994

Using the constant information model, constant amounts of test information, and a finite interval of ability, simulated data were produced for 8 ability levels and 20 numbers of test items. Analyses suggest that it is desirable to consider modifying test information functions when they measure accuracy in ability estimation. (SLD)

Descriptors: Ability, Adaptive Testing, Computer Assisted Testing, Computer Simulation, Estimation (Mathematics), Item Response Theory, Maximum Likelihood Statistics, Test Items

Publication Type: Reports - Evaluative; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A