“…The coding of L2 attainment, the criterion variable, is based on three sets of measures tapping into (1) general proficiency, (2) knowledge of specific aspects of the L2 such as grammar and vocabulary, and (3) language skills such as listening, speaking, reading, and writing. The criterion variable was coded as general proficiency if it was assessed through course or exam grades (e.g., Bain, McCallum, Bell, Cochran, & Sawyer, 2010; Sparks et al, 2009), standardized proficiency tests such as TOEFL (Ross, Yoshinaga, & Sasaki, 2002), and cloze tests (Harley & Hart, 1997). 4 As with general proficiency, L2 knowledge and skills were gauged through a variety of measures in the included studies, and the overarching principle followed in coding these measures was to retain the original labels for the constructs reported in the included studies.…”