Cindy Rutten, Filip Boen, Jan Seghers
Changes in physical activity and sedentary behavior during the transition from elementary to secondary school
Journal of physical activity & health
children begin acquisition second language l2 whether home school cognitive resources clearly play central role rapidity ultimate success language acquired individual factors motivation contextual factors determine amount type exposure second language also central acquisition process situations likely interact cognitive factors argue chapter process secondlanguage acquisition clarified distinguishing two dimensions proficiency relate specific ways determinants acquisition process namely attributebased inputbased aspects proficiency