I'm conducting a study of college/university educators in the U.S. and I'm looking for a reliable, validated burnout inventory that also provides a score range or norms differentiating different levels of burnout. Since I will only survey participants once (I'm using a cross-sectional design), I need some sort of benchmark for interpreting findings. I know the Maslach (MBI) would work, but it is expensive to use for large research administrations. I like the Oldenberg, but it doesn't seem like it's been widely employed among educators and I cannot find any norms or benchmarks. Are there alternative inventories that would be suitable for my purposes?

Thanks in advance!