 trial-by-trial interobserver agreement. This one's a bit more conservative and a good method for using. All you're gonna try to do is look at whether or not you agree to each interval, right? So did person A agree with person B during that particular interval? If so, yay, divide the number of agreeing trials or intervals by the number of total intervals that you have and you end up with a trial-by-trial IOA. Of course, that's a little ratio that you end up with. Multiply 100 to get your percentage and you're good. So did Bob see me picking my nose and did Jim see me picking my nose? So we can do that for each interval. If they agreed, yay, great, congratulations. Then we can count that. So trial-by-trial, we get a ratio overall. Multiply by 100 and you're done. That's it.