On average, students in science group a ask for assistance 8-12 times per 20-minute period. the teacher wants to decrease this behavior. she tells the group that if they are able to complete their 20-minute lab assignment with no more than three requests for assistance, they will receive 5 bonus points for their work. this is an example of:

This is an example of differential reinforcement of lower rates of behavior

Explanation: Differential reinforcement aims to use positive reinforcement to encourage desirable behaviours thereby reducing or eliminating totally negative or undesirable behaviours.

Here, the teacher aims to encourage the students to be independent as this is important in order to be able to function effectively in the society.

world bank is the correct answer.