3.1. Characteristics of the Study Participants
Of the 100 participants who met eligibility, 100 completed the paper and smartphone versions of the questionnaire and provided complete data. In the paper-first group, 50 participants first completed a paper-version questionnaire. In the smartphone-first group, 50 participants first completed the smartphone version questionnaire. The mean age of the study participants was 19.86 years (SD = 1.08, 23% male), 9 (9%) had a drinking habit, 1 (1%) had a smoking habit, and 37 (37%) had an exercise habit (