Adaptation and Evaluation of a German Sign Language Test

Tobias Haug
Despite the current need for reliable and valid test instruments to monitor the sign language acquisition of Deaf children in different countries, very few tests offering strong evidence for their psychometric properties are commercially available. A German Sign Language (DGS) test that focuses on linguistic structures acquired in preschool- and school-aged children (4–8 years old) is urgently needed. The present study uses as a template a test which has sound psychometric properties and has been...