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The Toronto Alexithymia Scale (TAS) is a 26-item self-report measure of alexithymia with good internal consistency and test-retest reliability, and a factor structure congruent with the alexithymia construct. This study assesses the construct validity of the scale by examining its relationship with several personality and psychopathology measures. In a sample of 81 college students, the TAS correlated strongly and positively with a measure of hypochondriasis but negatively with measures of psychological mindedness and 'need for cognition'. There were low-magnitude correlations between the TAS and measures of self-depreciation, social introversion, persecutory ideation, and impulse expression, but no correlation with a measure of denial. These results indicate that the TAS is assessing adequately the theoretical domain relevant to its item and factor structure.
Bagby et al. (Wed,) studied this question.