Measures of performance (Wolfe-Quintero, Inagaki & Kim 1998) Accuracy –Number of Total, 1 st, 2 nd, and 3 rd degree errors per T- unit (Err Tot, Err 1 st, Err 2 nd, Err 3 rd ) Syntactic complexity –Number of clauses per T-unit (C per T-U) –Number of dependent clauses per clause (DC per C) Lexical variation –Type/token ratio (WT/W) –Ratio corrected for text length (WT/√2W)
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