Developmental issues also play a role in selecting members for a group counseling intervention. School counselors need to select members and structure groups according to students’ cognitive abilities. Older students will be better able to process more complex emotions than younger students. This will affect the type of group that is most appropriate for students at various grade levels. Counselors will also need to tailor their vocabulary in developmentally appropriate ways in order to maximize the engagement of the group members (Geroski & Kraus, 2010).