If your friends have been asking for you to give them your ADHD medication it's best you sit to them and have a serious conversation on how bad selling your medication is and how adderall can have severe effects on a kid especially when they dont need it . If your friends feel they need it suggest they talk to their pediatrician lt parents about it , because maybe they could have a disorder too . I would also suggest telling then that adderall is an opioid and a drug and could also cause withdrawls which are extremely uncomfortable. If they dont wanna be friends with you because you wont give them your medication it's best to drop them because they may or may not being using you and having toxic friends can lead to lower self confidence.
Operant behaviour or conditioning which is also known as Instrumental conditioning is a type of learning process in which the strength of an organism or individuals behaviour is modified by punishment or reinforcement either positively or negatively.
Operant behavior is said to be "Voluntary" because the responses of the organism are under its control.