Parker James D A, Taylor Graeme J, Bagby R Michael
Department of Psychology, Trent University, Peterborough, Ontario, Canada K9J 7B8.
J Psychosom Res. 2003 Sep;55(3):269-75. doi: 10.1016/s0022-3999(02)00578-0.
Some researchers have questioned the stability of the three-factor structure of the 20-Item Toronto Alexithymia Scale (TAS-20) or the reliability of one or more factors of the scale. The aim of this study was to assess the replicability of the factor structure of the TAS-20 in a large community sample and to determine also whether the same three-factor structure can be recovered in men and women. The study also assessed the reliability of the scale and the influence of gender, age, and education on TAS-20 scores.
The TAS-20 was administered to 1933 adults (880 men and 1053 women) residing in several small cities and towns in Ontario, Canada. The factor structure of the scale was assessed using confirmatory factor analysis (CFA).
The three-factor structure of the TAS-20 was replicable in the entire community sample and also separately in men and women. The TAS-20 and its three factors demonstrated internal reliability, and the variables of gender, age, and education accounted for relatively small or modest amounts of variability in total TAS-20 and factor scale scores.
The results provide strong support for the reliability and factorial validity of the TAS-20 and indicate the importance of using CFA when assessing the replicability and theoretical integrity of the factor structure of the scale.
一些研究人员对20项多伦多述情障碍量表（TAS - 20）的三因素结构稳定性或该量表一个或多个因素的可靠性提出了质疑。本研究的目的是评估TAS - 20因素结构在一个大型社区样本中的可重复性，并确定男性和女性是否能恢复相同的三因素结构。该研究还评估了量表的可靠性以及性别、年龄和教育程度对TAS - 20得分的影响。
对居住在加拿大安大略省几个小城镇的1933名成年人（880名男性和1053名女性）施测TAS - 20。使用验证性因素分析（CFA）评估量表的因素结构。
TAS - 20的三因素结构在整个社区样本中以及在男性和女性中分别都具有可重复性。TAS - 20及其三个因素显示出内部可靠性，并且性别、年龄和教育程度变量在TAS - 20总分和因素量表得分中占相对较小或适度的变异性。
结果为TAS - 20的可靠性和因素效度提供了有力支持，并表明在评估量表因素结构的可重复性和理论完整性时使用CFA的重要性。
