Comparing Latent Distributions
- 1 March 1980
- journal article
- Published by Cambridge University Press (CUP) in Psychometrika
- Vol. 45 (1) , 121-134
- https://doi.org/10.1007/bf02293602
Abstract
We consider the problem of comparing m latent population distributions when the observed values are scores on a test battery with binary items. The latent densities are assumed to be normal densities, and we consider a test for equality of the means as well as a test equality of the variances. In addition, we consider a longitudinal model, where the test battery has been applied to the same individuals at different points in time. This model allows for correlations between the latent variable at different time points, and methods are discussed for estimating the correlation coefficient.Keywords
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