title: The psychometric properties of cellular phone dependency questionnaire in students of Isfahan: A pilot study.
abstract: BACKGROUND
  A number of diagnostic scales or questionnaires have been developed in recent years, to assess mobile phone dependency. A valid and reliable assessment instrument for correspondence of Iranian culture is essential. The aim of our study is to validate the Iranian version of the Cell Phone Dependency Questionnaire (CPDQ).
  
  
  METHODS
  In this cross-sectional study, data were collected from 784 students, who were studying in four main Isfahan Universities. The participants completed the demographic questionnaire, CPDQ, anonymously. To analyze the data we used concurrent validity, factor analysis, internal consistency, split-half, and test-retest.
  
  
  RESULTS
  We extracted three factors including Salience, Overusing of the cell phone, compulsive use of SMS. Cronbach's alpha of the CPDQ was. 88 (Cronbach's alpha of the factors were 0.85, 0.70, and 0.76, respectively).
  
  
  CONCLUSIONS
  The CPDQ proved to be a reliable questionnaire to assess the extent of problems caused by the 'misuse' of the cell phone in Iranian society.
authors: Department of Management and Medical Informatics, School of Management and Medical Informatics, Isfahan, Iran.
authors: Seyyed Salman
authors: SS
authors: Alavi
authors: Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
authors: Mohammad Reza
authors: MR
authors: Maracy
authors: Department of Management and Medical Informatics, School of Management and Medical Informatics, Isfahan, Iran.
authors: Fereshte
authors: F
authors: Jannatifard
authors: Health Information Technology Research Center, Isfahan, Iran.
authors: Rezvan
authors: R
authors: Ojaghi
authors: Health Information Technology Research Center, Isfahan, Iran.
authors: Hossein
authors: H
authors: Rezapour
keywords: Cell phone dependency; students; validation