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Pre-trial surveyed use of MMP technology: (a) shows the devices students had for accessing MMPs. Facebook and Instagram were used the most by students (b) to view pictures and videos, chat with friends, and learn for educational purposes (c). Most students spent 3–6 h a day using technology (d). Before the study, most students used Instagram at least once a day, and only 10% reported never having used it (e).
