“…NDW is a widely used measure of lexical diversity (e.g., Nelson & Van Meter, 2002;Nelson et al, 2004 and has been used to distinguish between language-impaired and normally developing peers (e.g., Watkins, Kelly, Harbers, & Hollis, 1995). Spelling accuracy, extensively used in studies examining writing (e.g., Mackie & Dockrell, 2004;Nelson & van Meter, 2002), was calculated by dividing the number of correctly spelled words by the total number of words produced and multiplying by 100. Following are examples of spelling errors, ''Life was very difficat (difficult) for the colnist (colonists)'', ''They had hoses (houses) not like ares (ours)''.…”