Fixed and Random Effects
Encyclopedia of Statistics in Behavioral SciencePublished 15 April 2005
Tom A. B. Snijders
Citations114
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Abstract
Abstract In performing a multilevel analysis, what is a level? And when should a variable have a random slope? This depends on whether the units in the design should be regarded as being representative of a population and on whether the researcher wishes to draw conclusions primarily about the observed units or primarily about the population.
Keywords
Computer Science
Journal of the American Statistical AssociationHierarchical Linear Models: Applications and Data Analysis Methods
13,908 Citations2003Marie Davidian
The authors give us a thorough accounting of the core of linear model theory while having it extend into more modern extensions in many directions, and there is little attempt at motivation for parameterizations of classi cation models.