This exploratory dissertation investigates and describes 1) the habits of U.S. college students' use of mobile devices in the classroom, and 2) U.S. college students' perceptions on policy which bans mobile device usage in the classroom. The study also examines how students' demographics influence their usage of mobile devices in the classroom and perceptions on the banning policy. The purpose of this study was to determine how frequently college students self-reported the use of mobile devices in the classroom whether for communication or for activities unrelated to class content and how college students feel about policies banning the use of such devices during class. The following research questions framed this quantitative methods study: (1) To what extent do college students use their personal mobile device(s) during class for activities that are not related to class content?; (2) Which mobile device activities not related to class content do college student access most often during class time?; (3) To what extent do college students feel that mobile devices are a distraction from learning during class time?; (4) How do college students perceive banning of mobile device use during class time?; and (5) To what extent are student demographics related to attitude about mobile devices in college classrooms? This study utilized descriptive statistical analysis to summarize and analyze the survey results that were collected from 584 randomly selected U.S. college students. A questionnaire with 13 questions was distributed and collected through SurveyMonkey to the target audience who are: (1) 18-39 years old; (2) college students; and (3) studying in U.S. The survey results indicated a majority of college students don't perceive using a personal mobile device during class as a substantial distraction nor did the students who completed the survey prefer their instructors implement a policy banning the use of mobile devices for personal reasons in the classroom. In addition, the study found that most students use their personal mobile devices in the classroom for text messaging, social networking, and checking e-mail as those activities not related to the class content. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]