The Toronto Alexithymia Scale is a measure of deficiency in understanding, processing, or describing emotions.
[1] It was developed in 1986[2] and later revised, removing some of the items.
The current version has twenty statements rated on a five-point Likert scale.
The reliability and validity of the TAS-20 was established by a series of articles by R. Michael Bagby et al.[3] It has been researched extensively.
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