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ERIC Number: EJ978549
Record Type: Journal
Publication Date: 2012
Pages: 18
Abstractor: As Provided
Reference Count: 38
ISSN: ISSN-1070-5511
On Obtaining Estimates of the Fraction of Missing Information from Full Information Maximum Likelihood
Savalei, Victoria; Rhemtulla, Mijke
Structural Equation Modeling: A Multidisciplinary Journal, v19 n3 p477-494 2012
Fraction of missing information [lambda][subscript j] is a useful measure of the impact of missing data on the quality of estimation of a particular parameter. This measure can be computed for all parameters in the model, and it communicates the relative loss of efficiency in the estimation of a particular parameter due to missing data. It has been recommended that researchers working with incomplete data sets routinely report this measure, as it is more informative than percent missing data (Bodner, 2008; Schafer, 1997). However, traditional estimates of [lambda][subscript j] require the implementation of multiple imputation (MI). Many researchers prefer to fit structural equation models using full information maximum likelihood rather than MI. This article demonstrates how to obtain an estimate of [lambda][subscript j] using maximum likelihood estimation routines only and argues that this estimate is superior to the estimate obtained via MI when the number of imputations is small. Interpretation of [lambda][subscript j] is also addressed. (Contains 1 table, 3 figures and 6 footnotes.)
Psychology Press. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: National Longitudinal Study of Adolescent Health