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An examination of the factor structure of the eating disorder examination questionnaire

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Nilsson, Jodi 2011 , 'An examination of the factor structure of the eating disorder examination questionnaire', Coursework Master thesis, University of Tasmania.

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Abstract

The purpose of this research was to evaluate the factor structure of the Eating
Disorder Examination Questionnaire (EDE-Q). Currently there is a four subscale
approach to interpreting results; however, recent findings have indicated varying
factor structures, including 1 and 3 factor solutions. This study utilised a large
epidemiological sample (N=5255) of Australian women (Mean age = 30.26,
SD=7.22). The sample was randomly divided to supply a test, and replication
sample. Current factor models were tested using sequential confirmatory factor
analysis. The models were tested using mean and variance adjusted weighted least
squares (WLSMV) estimations of the tetrachoric correlation matrix. Support was
found for a three factor model, comprised of a combined weight and shape factor, a
restraint factor, and an eating concern factor. Adjustments were made to refine the
supported model. Four items were found to be replicating another similar item, and
therefore were removed. Additionally the question assessing fasting, "Avoidance of
eating", was problematic, concurring with previous research. The findings of this
study support a reduced three subscale structure for the EDE-Q in which the division
between weight and shape is removed. Further examination of the methodological
problems associated with contagion and question order effects may aid in future
research. In considering these findings and those of other researchers, there is limited
support for the stability of the subscales across different samples, and this should be
considered in interpreting research utilising the EDE-Q.

Item Type: Thesis - Coursework Master
Authors/Creators:Nilsson, Jodi
Copyright Holders: The Author
Copyright Information:

Copyright 2010 the author.

Additional Information:

Available for use in the Library and copying in accordance with the Copyright Act 1968, as amended. Thesis (MPsych(Clin))--University of Tasmania, 2011. Includes bibliographical references

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