Thanks to the research carried out and the development of norms for people aged 21-70+, the Leiter International Performance Scale – Third Edition (Leiter-3) can be administered not only to persons aged 3 to 20 years (as before), but also to adults.
This is particularly valuable because the Leiter-3 designed to assess nonverbal intelligence, nonverbal memory and attention, as the only completely non-verbal test can be used to examine persons with whom verbal contact is difficult or impossible.
We are glad that by issuing the expected Standardization for Adults, we can respond to signals by psychologists that Leiter-3 would also be useful for examining people over 20 years of age.
Tools for measuring parental stress PSI-4 and SIPA in the computer research version on the Epsilon platform
The annual European Test Publishers Group (ETPG) conference took place in Athens from June 14th to June 16th, 2023.
We are in solidarity with Ukraine!
This year, the event was organized by the Polish Society of Organizational Psychology, and we had the honor of being one of the sponsors of the conference.
The book by the authors of the Polish adaptation of the WISC®-V: Prof. Anna Matczak, Aleksandra Jaworowska, PhD, Joanna Stańczak and Iwona Bac
We are pleased to announce that the Quick Naming Test for Older children (TSN-S) can now also be used to examine children aged 13–16 years.