Challenges and solutions in test adaption

Sign language assessment tools are important for professionals working with DHH children to measure sign language development and competence. Adaptation of an existing test can be a solution when initiating assessment in a sign language community; the adaptation process must adhere to key principles and procedures. We introduce the principles of test adaptation and outline the challenges we faced in adapting the British Sign Language Production Test (Herman, Grove, Holmes, Morgan, Sutherland & Woll 2004) to German Sign Language and American Sign Language. Challenges included decisions regarding the normative sample, the use of terminology, and variations in the scoring protocols to fit with each language. The steps taken throughout the test adaptation process are described, together with a comparison of parallels and differences. We conclude that test adaptation is an effective method of developing practical tools for sign language assessment and contributes to a better understanding of sign language development.