Teens don't seem to grow out of problematic cell phone use. Participants who strongly agreed with statements such as “the amount of time I spend using my cell phone keeps me from doing other important work” at the beginning of the study tended to still strongly agree after three years.

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Teens don't seem to grow out of problematic cell phone use. Participants who strongly agreed with statements such as “the amount of time I spend using my cell phone keeps me from doing other important work” at the beginning of the study tended to still strongly agree after three years.