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| Achievement Tests | 1 |
| Latent Trait Theory | 1 |
| Mathematical Models | 1 |
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| Multivariate Behavioral… | 1 |
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| Hattie, John | 1 |
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Peer reviewedHattie, John – Multivariate Behavioral Research, 1984
This paper describes a simulation that determines the adequacy of various indices as decision criteria for assessing unidimensionality. Using the sum of absolute residuals from the two-parameter latent trait model, indices were obtained that could discriminate between one latent trait and more than one latent trait. (Author/BW)
Descriptors: Achievement Tests, Latent Trait Theory, Mathematical Models, Monte Carlo Methods
