What would be the independent dependent variables and control group inthis experiment?
Your independent variable (the one that you, as the researcher, control or manipulate) is seating arrangement. Your dependent variable (i.e., what you are measuring) is “relationship development”. To actually conduct such a study, you would need to operationally define this variable. For example, “identifies X as a friend” may be one way to do this. Your control group is the one which does not change (the one which remains in alphabetical order throughout the study).