Subjects

A total of 268 undergraduate students participated in this experiment. The students were volunteers recruited among students majoring in computer science, engineering, architecture, and accounting. The students were given credit for participating in the study. Subjects were categorized as either "novice" or "experienced" subjects, according to their previous background, as reflected in their responses to items in the Pre-Test Questionnaire, administered to the subjects prior to conducting the actual task. The subjects who participated in the study were primarily undergraduate students from the New Jersey Institute of Technology in Newark, NJ.