This chapter contains several examples of preassigned groups used in quasiexperimental research (e.g., groups based on preassignment such as gender, race, grade in school, etc.). Name three more...

This chapter contains several examples of preassigned groups used in quasiexperimental research (e.g., groups based on preassignment such as gender, race, grade in school, etc.). Name three more examples of preassigned groups appropriate for quasi-experimental research.