Question

what does the overjustification effect do to help stop a behavior? it removes extrinsic motivation. it causes extrinsic and intrinsic motivation to be ineffective. it adds extrinsic motivation.

Explanation:

The overjustification effect occurs when external rewards (extrinsic motivation) reduce intrinsic motivation. To stop a behavior, it works by removing extrinsic motivation, as relying on external rewards can undermine the internal drive, and reducing that external drive can help in ceasing the behavior. The option "It causes extrinsic and intrinsic motivation to be ineffective" is incorrect as it's not about both being ineffective. "It adds extrinsic motivation" is wrong as the effect is about reducing or removing extrinsic motivation's over - influence.

Answer:

It removes extrinsic motivation.