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Title: Further validation of the Chinese version of the Level of Expressed Emotion Scale for research and clinical use
Authors: Chien, WT 
Chan, SWC
Keywords: Expressed emotion
Psychotic disorders
Factor structure
Issue Date: Feb-2010
Publisher: Elsevier
Source: International journal of nursing studies, Feb. 2010, v. 47, no. 2, p. 190-204 How to cite?
Journal: International journal of nursing studies 
Abstract: Background: Expressed emotion is a construct that has been used for the past three decades to describe family members' criticism, hostility and emotional involvement with a mentally ill relative within the context of family interactions and caregiving. In Western countries this construct is used as an outcome measure of interventions for families of people with schizophrenia or other psychotic disorders, but the use of this construct in Chinese populations is somewhat limited.
Objective: To test the reliability and validity of a refined Chinese version of the 52-item Level of Expressed Emotion Scale (LEE).
Methods: A convenience sample of 405 outpatients with psychotic disorders in Hong Kong and one of their family caregivers were recruited. Patients were asked to complete a set of questionnaires twice over a 6-month period, including the Chinese version of the LEE, the Specific Level of Functioning scale and the Brief Psychiatric Rating Scale; while their caregivers completed the Family Assessment Device twice and a demographic data sheet at recruitment. This study was aimed at establishing the internal consistency, reproducibility, responsiveness, and construct validity of the LEE.
Results: Results indicated that the refined 50-item Chinese version of the LEE and its subscales demonstrated a high internal consistency and satisfactory correlations with patient and family functioning scores. Principal component analysis revealed the presence of four factors, explaining 70.8% of total variance and indicating high factor loadings as well as item-factor inter-correlations. The Chinese version not only indicated a satisfactory reproducibility in assessing change in patients¡¦ symptom severity and family functioning but also showed an adequate responsiveness to the changes in patients¡¦ symptoms over 6 months, especially for detecting symptom improvement.
Discussion: The findings of the psychometric evaluation of t
ISSN: 0020-7489
DOI: 10.1016/j.ijnurstu.2009.05.019
Rights: International Journal of Nursing Studies ? 2009 Elsevier. The journal web site is located at
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