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Vasdekis, Vassilis G. S.; Cagnone, Silvia; Moustaki, Irini – Psychometrika, 2012
The paper proposes a composite likelihood estimation approach that uses bivariate instead of multivariate marginal probabilities for ordinal longitudinal responses using a latent variable model. The model considers time-dependent latent variables and item-specific random effects to be accountable for the interdependencies of the multivariate…
Descriptors: Geometric Concepts, Computation, Probability, Longitudinal Studies
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Kupermintz, Haggai – Educational Evaluation and Policy Analysis, 2003
This article addresses the validity of teacher evaluation measures produced by the Tennessee Value Added Assessment System (TVAAS). The system analyzes student test score data and estimates the effects of individual teachers on score gains. These effects are used to construct teacher value-added measures of teaching effectiveness. We describe the…
Descriptors: Teacher Effectiveness, Test Validity, Scores, Socioeconomic Background