homogeneous group
an aggregate of individuals or other elements that are similar to one another in a number of significant respects. In a social context, for example, a homogeneous group might include members who are the same age or have the same socioeconomic background, values, work experience, education, and so on. In educational contexts, a homogeneous group may be an entire class or a smaller group formed within a class and based on similar ability in a specific area (e.g., mathematics). Compare heterogeneous group.