Abstract
This paper reports on a collaborative project in progress to develop a standardised clinical assessment of British Sign Language development for use with deaf children. The need for such an assessment is highlighted following a survey of professionals working in this area (Herman, in press). The development of the assessment battery will be described in the context of research into the assessment of sign language development. Issues in selection of the standardisation population will be presented. Finally the need for collaboration between different professionals working in this area, in particular the key role of the deaf BSL user will be emphasised.