We use the DIBELS testing as a tool also but that's only one tool of many that I use to determine reading groups. Our groups are supposed to be flexible and based on need or the skill being taught. For example, you might have a low and middle to high student both struggling with a skill. They might be in the same group THAT day. I had 4 groups last year. One group was really high and reading chapter books easily. One group was really low and still struggling with some basic skills like short and long vowels. The middle two were probably the most flexible. But I did pull a high student one day to work with a lower group because she was having trouble with a skill and I felt she needed a review. In an ideal world, your reading groups would change pretty regularly, sometimes daily or biweekly, if you were really flexible and grouped by skill. But the real world, I have found, just does not work that way. Unfortuately, my lowest group usually stays my lowest group. Yes, they progress. Yes, I change the people around somewhat. But the kids that truly lack the skills are going to stay together. Like I said the middle two groups were more flexible and I would pull a low or high and usually put in a middle group if need be. I hope all that made sense!!
