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The Effect of Mental State on EPI Scores

Published online by Cambridge University Press:  29 January 2018

G. N. Bianchi
Department of Psychological Medicine
D. M. Fergusson
Department of Paediatrics, University of Otago, Christchurch Hospital, Christchurch, New Zealand


This paper develops a structural equation model to assess the effects of mental state on EPI scores. This model is applied to results obtained from a clinical population. The findings show that: (a) the E scale is not influenced by mental state as measured by the Hamilton Anxiety Scale (HAS); (b) the N scale is influenced by HAS. An attempt to revise the N scale to produce an un-contaminated score is discussed.

Research Article
Copyright © Royal College of Psychiatrists 1977 

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