Answer: something to make someone want to do something. positive: you will get money if you get an A. Negative: I won't take your phone away if you get a A. i think
Something that encourages a someone to do, or not do, something.
Explanation:
For example a positive incentive is when business owners give puntuality bonuses to their employees, which are basically an amount of money a month just for arriving on time to work, a negative incentive can also be seen as punishments, for example when parents take their kids cellphones because they got bad grades, that is a negative incentive.
When American English is better, it's better because it's easier to imitate or learn if you're learning English. Our accents are more flexible than the British ones. ..