 Alright, hey Brad here with reinforcement, which is when a stimulus is added or removed but then consistently and contingently that increases the future probability of a behavior. So it's pretty simple. If I go to work, I get paid reinforcement. That process of being consistently paid after a certain time of work is reinforcement. Or let's go with a kid who's playing soccer and he shoots and scores a goal. The process of shooting and scoring a goal is hopefully reinforcing for him. Should be. Negative reinforcement would be two siblings in an argument. Let's say the older sibling is being really annoying and the little sibling decides to scream or run away. That would be negative reinforcement because potentially either the parents would intervene and remove the older sibling or the older sibling would just leave. Every time the older sibling then comes in and tries to be a little brat, the sibling would just learn that if I scream, you're going to be removed.