Sources of Error

1. Due to the complex nature of the experiment, interviewing more subjects would provide a larger variety of responses.

2. Because gestures had to be recorded while looking down at the chart, some gestures may have been missed. It might have helped to have one person asking the questions while another observed from afar, recording gestures as they occur.

3. The mood of the subjects and the atmosphere of the interview may have had various effects on each subject.