Timmy does not want to do his geometry homework so he throws a tantrum and begins to scream and yell. His mother tries to ignore it but eventually gives up and says, "Fine! Go to your room and don’t come out!" Timmy got what he wanted, does not have to do his homework and this increases his frequency of throwing tantrums in the future. This is an example of .1. Positive reinforcement 2. Negative reinforcement 3. Negative punishment 4. Not enough information