The Reliability and Factorial Validity of the Japanese Version of the 20-Item Toronto Alexithymia Scale (TAS-20)

DOI Web Site 16 Citations 11 References
  • Komaki Gen
    Division of Psychosomatic Research, National Institute of Mental Health, National Center of Neurology & Psychiatry
  • Maeda Motonari
    Joshibi University of Art and Design
  • Arimura Tatsuyuki
    Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University
  • Nakata Akinori
    National Institute of Industrial Health
  • Shinoda Haruo
    Faculty of Education, Ibaraki University
  • Ogata Ichiko
    Teito Rapid Transit Authority
  • Shimura Midori
    Division of Psychosomatic Research, National Institute of Mental Health, National Center of Neurology & Psychiatry
  • Kawamura Noriyuki
    Division of Psychosomatic Research, National Institute of Mental Health, National Center of Neurology & Psychiatry
  • Kubo Chiharu
    Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University

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Other Title
  • 日本語版The 20-item Toronto Alexithymia Scale (TAS-20)の信頼性,因子的妥当性の検討
  • ニホンゴバン The 20 item Toronto Alexithymia Scale TAS 20 ノ シンライセイ インシテキ ダトウセイ ノ ケントウ

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We evaluated the reliability and factorial validity of a Japanese version of the Toronto Alexithymia Scale-20 (TAS-20), a self-reporting questionnaire for assessing alexithymia, in a group of normal subjects (n=347) and in a mixed group of psychosomatic and neurotic outpatients (n=940). The three-factor structured model was found to be reliable and replicable in the Japanese version of TAS-20, by confirmatory factor analysis of each group. The sufficient total test reliability and good test-retest reliability indicate that the Japanese version of the TAS-20 is reliable for use with the Japanese population, although external-oriented thinking had low internal consistency, indicating less homogeniety than other factored items.

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