SAT12

data obtained from the TESTFACT manual; 32 pattern scored items for a grade 12 science assessment test (SAT) measuring topics of chemistry, biology, and physics. The scoring key for these data is [1, 4, 5, 2, 3, 1, 2, 1, 3, 1, 2, 4, 2, 1, 5, 3, 4, 4, 1, 4

data

Analysis of dichotomous and polychotomous response data
        using latent trait models under the Item Response Theory
        paradigm. Includes the multivariate two- and three-parameter
        logistic models, confirmatory bifactor analysis, and polytomous
        confirmatory and exploratory item response models.

SAT12: Description of SAT12 data

Description

Usage

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