Minimax estimation of the common variance and precision of two normal populations with ordered restricted means
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DOI: 10.1007/s00362-019-01090-2
Abstract: Consider two independent normal populations with a common variance and ordered means. For this model, we study the problem of estimating a common variance and a common precision with respect to a general class of… read more here.
Keywords: variance; normal populations; estimator; estimating common ... See more keywords
A-ComVar: A Flexible Extension of Common Variance Designs
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DOI: 10.1007/s42519-019-0079-y
Abstract: We consider nonregular fractions of factorial experiments for a class of linear models. These models have a common general mean and main effects; however, they may have different 2-factor interactions. Here we assume for simplicity… read more here.
Keywords: extension common; variance designs; variance; comvar designs ... See more keywords
Impact of Sampling Variability When Estimating the Explained Common Variance
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DOI: 10.1177/01466216221084215
Abstract: Assessing multidimensionality of a scale or test is a staple of educational and psychological measurement. One approach to evaluate approximate unidimensionality is to fit a bifactor model where the subfactors are determined by substantive theory… read more here.
Keywords: sampling variability; impact sampling; explained common; factor ... See more keywords