Unlabelled: Abstract thinking belongs to intellectual abilities of the highest level of the evolutionary development, thanks to which operations such a classification, systematisation and comparison are possible.
Aim: An analysis of the psychometric properties of the Proverb-Metaphor Test (TPM) which has been used in the German speaking countries since 2001. The TPM was subject to the process of translation--retranslation--travesty in order to be adapted to clinical conditions in Poland.