“…Hypothesis 1: Based on findings in input-rich (e.g., Paradis, 2011) and input-poor settings (e.g., Sun, Steinkrauss, Tendeiro, et al, 2016; Sun, Steinkrauss, Wieling, et al, 2016), components of both internal factors (i.e., age, language aptitude, and gender) and external factors (i.e., input quantity, input quality, output, and SES) are expected to explain some variance of English and MT vocabulary knowledge.…”