Abstract:Background: To evaluate the effectiveness of descriptive norms in promoting physical activity among adolescents by measuring step counts via a randomized controlled trial (NCT03081013). Methods: A total of 311 participants aged 13-16 were randomized into two study arms (Onymous and Anonymous Arms). Each arm consisted of 13 groups of 12 participants. During the trial, participants received weekly short message service (SMS) about their past week’s physical activity performance Participants in the Anonymous Arm … Show more
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