Globalization changes the composition of the adult classroom, increasing diversity and bringing new associated teaching and learning problems; problems with group work. Educators may have goals to teach transferable multicultural group working skills yet learners find such work more challenging, showing a propensity to form groups containing students more like themselves i.e. unicultural. Using survey data from MBA students spanning 25 countries, this empirical article documents an investigation into methods and techniques used to create groups for teaching and learning in diverse classrooms and considers the arguments for and against a range of approaches. We conclude the educational goal directing the use of group work, student stage and the need for attaining affective and performance outcomes are important determinants of group allocation methods. (Contains 5 figures, 1 table and 7 endnotes.)