 Multiple baselines. Experimental technique where you stack A's and B's. Alright. What even are you? I really hope you're not recording. I was. I got you now. Well, there we go. Alright. Sorry, this is the first video of the day and you're asking me to do research methods. Alright. Multiple baselines. One of the most sexy designs of all type of designs and people wonder why I call these sexy because here's why. It's a multiple baseline and that's just sexy. No, I'm sorry folks. I apologize for the sexual references. This is actually, it's elegant. I guess sexy is not the right term. It is elegant. Alright. So what we've got is an A-B design. But wait a minute. You know that A-B designs aren't experimental, but yet a multiple baseline is. So you take an A-B design. So an A-B, poof, whatever. Okay. We're going to start with just somebody's behavior, whatever that behavior is. So we're gonna increase, I don't know, humorous comments. Alright, so we're gonna increase humorous comments. So we're gonna get a baseline and then we're gonna do some intervention to increase that behavior, right? But we're gonna, we wanna make it more experimental. So we're gonna in this example, do another setting. So we're gonna do a second baseline, but this time we're gonna keep that baseline going past the start of the intervention for the first baseline. Alright? Then we're gonna do, and then we're gonna run the intervention. And then we're gonna do that a third time, but keep that baseline going the same across all of these times, alright? So all three baselines start at the same time. key. One continues and then we start the intervention. Next one keeps going, we start the intervention here. Next one goes, we start the intervention here. It's the comparison between those overlaps between the intervention starts and the baselines that make this experimental. Super elegant designs based on a really, really simple AB. We will follow it up, look at the other videos for the other types of multiple baselines.