The phrase "homogenous group" means a group of people or things that are very similar or alike in terms of characteristics, qualities, or backgrounds. Full definition
I am not too sure if I expected more of homogenous group of passengers, but the mixture of people was comforting. (grandbaymen.com)
What struck me most about your comments was the final component in which you reflected that the students assigned to your classroom would be reorganized in homogenous groupings in a last ditch effort before the state testing. (vamboozled.com)
If there is a need to group students by ability, teachers can organize students into heterogeneous grouping mixing students with different abilities or into homogenous groups with students in separate groups based on high, medium, or low academic achievement. (thoughtco.com)