 This time we're talking about change schedules versus tandem schedules as you might imagine it's about doing things in tandem So go hit me here and me here kind of like a chain. You can pull a chain Anyway, I don't know why I had those visuals of pulling a chain through my body I was watching David Copperfield the other day, and I really wanted to do that magic trick. But anyway Beside the point 10. Let's start off with chain schedules. In fact, let's back up a whole notch What's the difference between a chain schedule and a tandem schedule one thing folks? That could be a bunch But really just one thing One of them you discriminate have discriminative stimulus the stimuli between each change in your In your schedule of reinforcement and the other one you don't Sounds kind of like multiple schedules and mixed schedules, but it is okay It's the same sort of difference between the two So what's a chain schedule a chain schedule is exactly like what it sounds you start off with one schedule of reinforcement when you complete it The reinforcer for completing it is the start of the next schedule and the reinforcer for completing that is the start of the next one And it terminates when you complete that schedule with hopefully an unconditioned reinforcer if you're in the lab But if you're in you know, the real world, it's probably a condition reinforcer except the condition reinforcer in the real world Anyway, so anyway, so you end up with that chain, right? So each link in the chain is discriminated You know exactly when you're on different schedules and so on so forth. So what is this like? This would be like I don't know oh Working on your house. I want to put new floors down in my house. So what do I need to do? I need to pull up the carpets. There's step number one once I pull up next once I pull up the carpets Now what do I need to do? I need to pop off all the tax trip and all the trim and all that fun stuff So there's chain number two part number two these are on individual schedules of reinforcement because there's so much carpet There's extra amounts of carpet. There's X amount of pole and you know rugs that you got to pull out There's X amount of tax strips that you got to pull out and so on so forth each things discriminated because I can see What I have to do next as opposed to if you go to work and you end up on a tandem schedule and the boss just says go You have no idea what it is You're supposed to imagine starting a job you were high imagine this you were hired for a job Because you saw a job listed on Craigslist and it said the most exciting job in the world come join us for all your future needs and growth Potential and you go to an interview and they say would you like to have a job? And you said yes, I'd love to have a job and they said when can you start and second start tomorrow? They said was $15 an hour. Okay, you say it's great. Then you say what am I gonna do? They said we're not going to tell you Me what what? You show up for work on Monday. Is that gonna work for you ma'am sir, whatever. Um, yes, that'll work fine for me Where do I go you go to that building? What do I do when I get there? You'll find out when you get there Okay, sounds good go there on Monday you go to your desk you open you find you find a door You open the door you go in there. There's a desk. You sit down at the desk. There's a computer But you're given no instructions You have no idea what you're doing At some point in time there's going to be reinforcers delivered if you complete particular tasks Kind of feels like a bunch of video games, right? Sometimes video games do this to you They don't really tell you what's going on just kind of figured out There's this stupid old video game that used to drive me absolutely crazy and I threw it away It's called portal and portal too. I just can't deal with it. It feels like tandem schedules I think but I'm not really sure because they're really hard to come up with examples for but basically the idea Is that you got to do all these different stuff things that are on different schedules of reinforcement And you don't know what it is that you have to do Oh, there's another one missed was kind of like that a whole bunch of old video games that are kind of like that Anyway, the point is is that a change schedule? There's links in a chain tandem schedule There's links in the tent in the tandem schedule, too You just don't know where those things are you don't know what you're expected to do You don't know what the reinforcement rates are and for crying out loud There's no discrimination. So you really don't have any clue what's really going on at all. So In a nutshell again, we have the difference between a chain and tandem schedule is a discrimination There is no SD in tandem schedules and there is when you're on a chain schedule So when you switch those links in a chain are discriminated on a tandem schedule, they are not