A psychometric comparison of the Toronto Alexithymia Scale (TAS-20) and the Observer Alexithymia Scale (OAS) in an alcohol-dependent sample

Thorberg, Fred Arne, Young, Ross McD., Sullivan, Karen A., Lyvers, Michael, Connor, Jason P. and Feeney, Gerald F.X. (2010) A psychometric comparison of the Toronto Alexithymia Scale (TAS-20) and the Observer Alexithymia Scale (OAS) in an alcohol-dependent sample. Personality and Individual Differences, 49 2: 119-123. doi:10.1016/j.paid.2010.03.018


Author Thorberg, Fred Arne
Young, Ross McD.
Sullivan, Karen A.
Lyvers, Michael
Connor, Jason P.
Feeney, Gerald F.X.
Title A psychometric comparison of the Toronto Alexithymia Scale (TAS-20) and the Observer Alexithymia Scale (OAS) in an alcohol-dependent sample
Journal name Personality and Individual Differences   Check publisher's open access policy
ISSN 0191-8869
1873-3549
Publication date 2010-07-01
Sub-type Article (original research)
DOI 10.1016/j.paid.2010.03.018
Open Access Status Not Open Access
Volume 49
Issue 2
Start page 119
End page 123
Total pages 7
Place of publication Oxford, United Kingdom
Publisher Pergamon
Language eng
Subject 170110 Psychological Methodology, Design and Analysis
170112 Sensory Processes, Perception and Performance
920410 Mental Health
920414 Substance Abuse
Abstract Alexithymia is characterised by deficits in emotional insight and self-reflection that impact on the efficacy of psychological treatments. Given the high prevalence of alexithymia in Alcohol Use Disorders, valid assessment tools are critical. The majority of research on the relationship between alexithymia and alcohol-dependence has employed the self-administered Toronto Alexithymia Scale (TAS-20). The Observer Alexithymia Scale (OAS) has also been recommended. The aim of the present study was to assess the validity and reliability of the OAS and the TAS-20 in an alcohol-dependent sample. Two hundred and ten alcohol-dependent participants in an outpatient Cognitive Behavioral Treatment program were administered the TAS-20 at assessment and upon treatment completion at 12 weeks. Clinical psychologists provided observer assessment data for a subsample of 159 patients. The findings confirmed acceptable internal consistency, test–retest reliability and scale homogeneity for both the OAS and TAS-20, except for the low internal consistency of the TAS-20 EOT scale. The TAS-20 was more strongly associated with alcohol problems than the OAS. © 2010 Elsevier Ltd. All rights reserved.
Keyword Alexithymia
Toronto Alexithymia Scale
Observer Alexithymia Scale
Psychometric properties
Alcohol-dependence
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Health and Behavioural Sciences -- Publications
Official 2011 Collection
School of Medicine Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 22 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 27 Jun 2010, 10:02:52 EST