 mean duration per occurrence interval observer agreement right so this one's for a duration type behavior continuous behavior one that you're using time to track right so we got two people are gonna track a particular behavior let's say how long kiddo X kiddo B get Bob let's say how long Bob stays out of seat all right so person one is going to measure oh Bob was out of seat for 35 seconds and person two goes oh no he was out of seat for 30 so we're gonna take in that interval right remember this is done by interval so we're gonna do so we're gonna take that first duration for the lowest duration divided by the highest duration for each interval right we're gonna get a number a ratio right a percentage we're gonna do that for each and every interval that you have within your your time period and then you're gonna average those ratios those percentages so we have the you know so anyway anyway it could be all the way from 0% agreement to 100% agreement in each interval and you have a continuous scale on there and basically unlimited right I mean you average all those out it's a pretty conservative number or a pretty conservative method and it's it's highly preferred it's very useful if you actually have duration type data if you can count it down with it with a stopwatch so use it if you can