Assessing Unidimensionality of Polytomous Data.

Nandakumar, Ratna; Yu, Feng; Li, Hsin-Hung; Stout, William

Notes FAQ Contact Us

Back to results

Peer reviewed

ERIC Number: EJ594310

Record Type: Journal

Publication Date: 1998

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0146-6216

EISSN: N/A

Available Date: N/A

Assessing Unidimensionality of Polytomous Data.

Nandakumar, Ratna; Yu, Feng; Li, Hsin-Hung; Stout, William

Applied Psychological Measurement, v22 n2 p99-115 Jun 1998

Investigated the performance of the Poly-DIMTEST (PD) procedure (and associated computer program) in assessing the unidimensionality of test data produced by polytomous items through Monte Carlo simulation. Results show that PD can confirm unidimensionality for unidimensional simulated data and can detect lack of unidimensionality. (SLD)

Descriptors: Evaluation Methods, Item Response Theory, Monte Carlo Methods, Simulation, Test Items

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A