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Direct linkZhou, Bo; Konstorum, Anna; Duong, Thao; Tieu, Kinh H.; Wells, William M.; Brown, Gregory G.; Stern, Hal S.; Shahbaba, Babak – Psychometrika, 2013
We propose a hierarchical Bayesian model for analyzing multi-site experimental fMRI studies. Our method takes the hierarchical structure of the data (subjects are nested within sites, and there are multiple observations per subject) into account and allows for modeling between-site variation. Using posterior predictive model checking and model…
Descriptors: Brain, Diagnostic Tests, Bayesian Statistics, Hierarchical Linear Modeling
Eggen, Theo J. H. M.; Verelst, Norman D. – Psychometrika, 2006
In this paper, the efficiency of conditional maximum likelihood (CML) and marginal maximum likelihood (MML) estimation of the item parameters of the Rasch model in incomplete designs is investigated. The use of the concept of F-information (Eggen, 2000) is generalized to incomplete testing designs. The scaled determinant of the F-information…
Descriptors: Test Length, Computation, Maximum Likelihood Statistics, Models
