 All right variable enter DRO All those words went together really fast folks variable interval DRO DR0 DR0 There's some argument here and go look at one of my other videos where I complain about that shit But anyway, so variable interval DRO It's a procedure in which you apply a variable interval schedule of reinforcement And if the behavior is not engaging in the if the organism person whatever is not engaging in the behavior at the end of That interval you earn reinforcers, of course It's on an average because it's variable so it ties in very closely with a variable ratio It also ties in closely with that DRO DR stands for differential reinforcement of O other ORT zero behavior Which is similar to a DRA and kind of a DRL and you could do a DRD And and we could just call the PRT and FCQ and whatever and if you remember where this comes from enjoy the movie Have a good day