A two-parameter latent trait model /
Bruce Choppin.

APA Citation

Choppin, B., University of California, L. Angeles. Center for the Study of Evaluation. (1983). A two-parameter latent trait model. Los Angeles: University of California, Center for the Study of Evaluation.

MLA Citation

Choppin, Bruce, and Los Angeles. Center for the Study of Evaluation University of California. A Two-parameter Latent Trait Model. Los Angeles: University of California, Center for the Study of Evaluation, 1983.

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