Korean J Schizophr Res.  2013 Oct;16(2):80-85. 10.16946/kjsr.2013.16.2.80.

The Reliability and Validity of the Korean Version of Apathy Evaluation Scale and its Application in Patients with Schizophrenia

• Lee YM
• Park IH
• Koo MS
• Ko SY
• Kang HM
• Song JE

• KMID: 2288327
• DOI: http://doi.org/10.16946/kjsr.2013.16.2.80

Abstract

OBJECTIVES
Apathy Evaluation Scale (AES) is one of the most frequently used scales to evaluate apathy. The purpose of this study was to evaluate the reliability and validity of the Korean version of the AES (K-AES) and to apply the K-AES in examining the characteristics of apathy in the Korean patients with schizophrenia.
METHODS
129 healthy people and 29 patients with schizophrenia have been evaluated using the K-AES, Physical Anhedonia Scale (PAS), Social Anhedonia Scale (SAS), and the Beck's Depression Inventory (BDI). Split-half reliability and internal consistency were evaluated and factor analysis and correlation analysis was conducted. Between-group comparison was conducted using independent sample t-tests.
RESULTS
K-AES showed good reliability and validity. Factor analysis confirmed 3 factors, which represented interest and drive, initiative, self-awareness and self-assessment. Patients with schizophrenia showed significantly higher K-AES and BDI scores than the healthy group. K-AES scores in patients with schizophrenia were significantly correlated with the PAS score, but did not correlate with SAS and BDI scores.
CONCLUSION
This study demonstrates the reliability and validity of the K-AES. Our findings also suggest that the K-AES may be a reliable instrument in assessing apathy as a negative symptom in patients with schizophrenia.

Keyword

Schizophrenia; Apathy; Anhedonia; Depression; Amotivation

MeSH Terms

Anhedonia
Apathy*
Depression
Factor Analysis, Statistical
Humans
Reproducibility of Results*
Schizophrenia*
Self-Assessment
Weights and Measures

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