“…Indeed, the automatization of writing, in expert adults, can sometimes be a source of errors, whereas the control of it, in children or novice writers, prevents the management of different operations in parallel (Hudson & Fivush, 1991). Writers must therefore continuously adjust the quantity of attention that they can grant to the different operations involved (Naglieri, Das, Stevens, & Ledbetter, 1990). Because the human information-processing system is limited (Shiffrin & Nosofsky, 1994;Velmans, 1991), some tasks can only be accomplished if they do not collectively exceed the subject's capacity (Richard, 1980).…”