Using the expectation maximization algorithm to estimate coefficient alpha for scales with item-level missing data

A 2-step approach for obtaining internal consistency reliability estimates with item-level missing data is outlined. In the 1st step, a covariance matrix and mean vector are obtained using the expectation maximization (EM) algorithm. In the 2nd step, reliability analyses are carried out in the usual...

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Vydané v:	Psychological methods Ročník 8; číslo 3; s. 322
Hlavný autor:	Enders, Craig K
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	United States 01.09.2003
Predmet:	Algorithms Humans Models, Psychological Psychology - methods
ISSN:	1082-989X
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