A 2006 research report (Behenen & Pooya, 2006) conducted on Iranian participants found that orthodontic patients wore their various orthodontic appliances for an average of 14.78 hours per day (standard deviation of 5.31 hours).Let's say the orthodontists want to study whether providing a video with information about the orthodontics will result in patients using their orthodontics more often per day.The next 15 patients watch a video when they visit the clinic.

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