A study comparing Singaporean and Australian samples found that both the Perth Alexithymia Questionnaire and the Toronto Alexithymia Scale-20 demonstrated good validity and reliability ...

The term “alexithymia” was first described in research in the 1970s and there is no clinical diagnosis. It is thought to affect roughly 10% of the general population , though.

the Saarbrücken Personality Questionnaire to measure empathy; the Toronto Alexithymia Scale-20 to assess alexithymia; the Emotion Regulation Questionnaire (ERQ) to assess emotion regulation ...