“…Several studies (Connor, 1990;Engber, 1995;Ferris, 1994;Frase, Faletti, Ginther & Grant, 1997;Jarvis, 2002;Jarvis, Grant, Bikowski & Ferris, 2003;Reid, 1990;Reppen, 1994) have revealed a range of linguistic features at surface and text-based levels. These features are found to be able to differentiate writing performance levels, as shown in Table 2.2, such as text length (Ferris, 1994;Frase et al, 1997;Grant & Ginther, 2000;Reid, 1990), word types, word length (Ferris, 1994;Frase et al, 1997;Grant & Ginther, 2000;Reid, 1990;Reppen, 1994). The findings suggest that higher-rated essays demonstrate a variety of syntactic constructions and lexical features more frequently, including passives (Connor, 1990;Ferris, 1994;Grant & Ginther, 2000), synonymy/ antonymy (Ferris, 1994), normalizations (Connor, 1990;Grant & Ginther, 2000), subordination, unique word 19 choice (Grant & Ginther, 2000), and personal pronouns (Ferris, 1994).…”