Abstract
Often, generalizability analyses may be viewed as two-stage processes. The goal of the first stage is to obtain estimated variance components for a G study design, given a universe of admissible observations. The second stage involves using these estimated variance components in the context of a D study design and universe of generalization to estimate quantities such as universe score variance, error variances, and coefficients. This dichotomy of stages is somewhat arbitrary at times, but it is a conceptually meaningful distinction. Therefore, this chapter treats multifacet G study designs and universes of admissible observations, while Chapters 4 and 5 treat multi-facet D study design considerations and universes of generalization.
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© 2001 Springer-Verlag Berlin Heidelberg
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Brennan, R.L. (2001). Multifacet Universes of Admissible Observations and G Study Designs. In: Generalizability Theory. Statistics for Social Sciences and Public Policy. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-3456-0_3
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DOI: https://doi.org/10.1007/978-1-4757-3456-0_3
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-2938-9
Online ISBN: 978-1-4757-3456-0
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