Acknowledgements

We would like to thank Dr. Ben Shneiderman for his help with feedback and suggestions throughout the life of our experiment, as well as the idea for what to choose for our research. We would also like to thank Dr. I. Scott Mackenzie for taking his time to help us by pointing us to relevant references. We followed his work closely when deciding how to carry out this experiment. Finally, we wanted to thank everyone who participated in the pilot study or experiment. We were pleasantly surprised by the generosity of our fellow Maryland students with their time.