Why the SLA of sign languages matters to general SLA research
SLA research is characterised by a striking homogeneity in the linguistic, social and geographical data we draw on. Such empirical homogeneity is a potential threat to the validity and scope of our claims and theories. This paper focuses on a particular gap in our knowledge, namely the SLA of sign languages. It outlines an argument for why the SLA of sign matters to general SLA research in terms o