 Concurrent schedules, a schedule of reinforcement in which two or more contingencies of reinforcement elements operate independently and simultaneously for two or more behaviors. Examples of concurrent schedules are numerous. They include everything from gambling to everyday life. Your behavior is constantly under multiple schedule control. Those multiple schedules, if you start to tease them out, you could start to identify what piece is reinforcing what behavior. The fact that they're happening all kind of on top of each other is when we say they are concurrent schedules. In the laboratory, we can specifically establish those schedules and tie them to a specific behavior, so it is clear to understand what pieces are reinforcing what behavior.