Designing Theory of Planned Behavior questionnaire and evaluation of its validity-reliability in order to assess the preventive behavior of mobile phone usage in girl students

Today, mobile phones are one of the cultural components of the young and adolescents. Mobile phones emit a kind of beam called electromagnetic field in the air, which consists of electric and magnetic waves. The purpose of this study was therefore to design and evaluate the validity and reliability of a Preventive Behavior Questionnaire of Mobile Phone usage consequences on female students of Baghmalek County.

This quasi-experimental study was conducted on 50 female high school students (16 to 18 years old) in Baghmalek metropolitan area. The study included both experimental and control groups through random sampling. The samples were evaluated in three stages using a researcher-made questionnaire. The training was provided in the form of individual counseling with the help of a pamphlet training aid. All stages of the present study were conducted according to ethical standards. Students were assured that the information is confidential. The data were analyzed by SPSS 16 software.

All 48 questions related to the theory of planned behavior questionnaire had very good content validity (0.79 to 0.99). Cronbach's alpha coefficient and intra-class correlation coefficient were 0.88 and 0.84, respectively.

The Preventive Behavior Questionnaire for mobile phone usage based on the Theory of Planned Behavior showed very good validity and reliability and can be used in research activities.