Comment Re:Behaviorism run amok (Score 1, Interesting) 706
I don't have references but studies we read in my child interventions class demonstrated that extrinsic motivators don't always extinguish internal motivation. The cases where this did happen is when people were rewarded for mindless busywork (pushing buttons), and those studies didn't match up to what people do in the real world at all. Other studies have found that if external rewards are used for interesting and challenging work (that is not impossible to complete) then internal motivation is actually increased.
Being paid to read books, for example, could qualify as an interesting task. Perhaps the child would also find that as their reading skills improve they enjoy reading and their internal motivation to do it would be increased.