School officials have debated the pros and disadvantages of students using cell phones in school. To examine the influence of student cell phone use on academics and conduct, Ohio high school and middle school administrators (6-12) were surveyed on their policies and perceptions of cell phone use in their schools. The research also examined the relationship between these perceptions and the consequences for breaking school cell phone policies and the administrators' age, experience, and school typology. The survey was distributed to 1,978 principals and assistant principals from the Ohio Association of Secondary School Administration. Almost every district has cell phone rules and regulations. The principals in the study agreed that cell phone use impacts academic achievement. The principals believed that cell phone use led to multiple codes of conduct violations. No association existed between age, gender, and experience and principals' perceptions of the percentage of negative effect on student academic achievement and violations to the code of conduct. Also, it was found that there was no statistically significant difference in the principals' perceptions of the percentage of students who violated their school's student code of conduct and had a negative impact on academic performance due to their cell phone use across school typologies. The principals who replied expressed that cell phones may help students organize, improve academic engagement, access information, and develop 21st-century skills. They also detailed that cell phones are addicting, distracting, and lead to cheating and harassment. Because school regulations controlling student cell phone use are often restrictive, research on various school policies and cell phone use is warranted. [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.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]