“…These may include motivation, anxiety, self-regulation, learner autonomy, gender, language proficiency, and strategy use (e.g., Cotterall, 1999;Horwitz, 1990;Peacock, 1999;Siebert, 2003;Tanaka & Ellis, 2003;Wenden, 1991Wenden, , 1999Yang, 1999). There is also evidence that certain beliefs are common among learners, teachers, target languages, cultures, instructional settings, and age groups (e.g., Chavez, 2007;Horwitz, 1999;Peacock, 2001;Schulz, 1996Schulz, , 2001. Today, however, learner beliefs are no longer seen as "stable mental representations that are fixed a priori constructs" (Kalaja & Barcelos, 2003, p. 2) but rather as highly dynamic because they can change in light of one's situation, emotional state, and company (Barcelos & Kalaja, 2011).…”