“…When individuals make a commitment to attempt to attain a designated standard, they are likely to sustain their efforts until they achieve that standard. Given that children are limited in their capacity to cognitively represent complex goals in thought, short-term goals that incorporate specific performance standards lead to higher performance than do temporally distant goals, general goals (e.g., "Do your best"), or no goals (Bandura & Schunk, 1981;Schunk, 1989Schunk, , 1990Tollefson, Tracy, Johnsen, Farmer, & Buenning, 1984).…”