According to research mentioned in this chapter, after observing the amount of time elementary students spent playing new math games, researchers provided rewards to children for playing with the games. After the rewards were removed, .

This question is missing the options. I've found the complete question online. It is as follows:

According to research mentioned in this chapter, after observing the amount of time elementary students spent playing new math games, researchers provided rewards to children for playing with the games. After the rewards were removed, .

a) children's intrinsic interest in the math games increased

b) the time children spent playing the game remained the same

c) although children reported less liking for the math games, they continued to play with them

d) children's intrinsic interest in the math games decreased

After the rewards were removed, d) children's intrinsic interest in the math games decreased.

Explanation:

If someone, a child or an adult, does something out of intrinsic motivation - motivation that comes from within, from internal rewards, such as fun, growth, or challenge -, giving them an external reward (a prize, some money, etc.) will most likely decrease their motivation. They will stop doing it for the sake of doing it, and will begin to do it for the reward. Once the reward is removed, they no longer feel compelled to keep on doing that activity. That is what happened in the research. Once researchers withdrew the rewards, students' interest in the math games decrease.