“…Situated accounts of communication have highlighted that language use is always embedded within specified contexts (cf. Hengst, 2015), and prior literature has documented the impact of factors such as attention, motivation, compliance, frustration tolerance, persistence, anxiety, and cultural background on test-taking performance (Allan, 1992;Dreisbach & Keogh, 1982;Erickson, 1972;Fleege, Charlesworth, Burts, & Hart, 1992;Peña, Iglesias, & Lidz, 2001;Speltz, DeKlyen, Calderon, Greenberg, & Fisher, 1999). Productive measures such as MLU, NTW, and NDW have similarly been noted to differ depending on such factors as motivation, genre, modality, place, and partner (e.g., Bornstein, Haynes, Painter, & Genevro, 2000;Fields & Ashmore, 1980;Nippold, 2009Nippold, , 2014Scott & Windsor, 2000).…”