I have a methods question that I'm hoping someone can provide some pointers and insights into. I am going to use a method that seems like it would have been used before, but I've had trouble hunting down examples, likely because they would be buried in literature from many different disciplines. Here is the scenario... I am going to perform a study of an IM interaction. I will have approximately 100 pairs that will communicate with each other via IM. People on one side of the interaction will ask a question and people on the other side will answer the question. After the interaction, each participant will fill out a brief questionnaire about the interaction. I am interested in comparing the different perceptions of the same interaction (e.g., the timeliness and quality of the interaction). Have any of you performed a similar study where people are paired up for some experience and then individually asked what their perceptions of the experience were? If so, do you have any pointers to papers or methods texts that I could review to get ideas on the specific analysis techniques or questions that I may want to consider? Any suggestions would be well appreciated. Regards, Derek Hansen Assistant Professor College of Information Studies University of Maryland