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Dereje W. Gudicha

Researcher at National Institutes of Health

Publications -  28
Citations -  496

Dereje W. Gudicha is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Medicine & Biology. The author has an hindex of 10, co-authored 20 publications receiving 286 citations. Previous affiliations of Dereje W. Gudicha include Wayne State University & Tilburg University.

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Power and Sample Size Computation for Wald Tests in Latent Class Models

TL;DR: This paper shows how to perform power and sample size computations in LC models using Wald tests for the parameters describing association between the categorical latent variable and the response variables and shows how design factors which are specific for LC analysis affect the information matrix.
Journal ArticleDOI

Power analysis for the bootstrap likelihood ratio test for the number of classes in latent class models

TL;DR: This paper proposes a computationally efficient ‘short-cut’ method to evaluate the power of the BLRT, as well as presents a procedure to determine a required sample size to attain a specific power level.