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ZJRMS 2011, 13(7): 34-38 Back to browse issues page
Survey on validity and reliability of diagnostic questionnaire of internet addiction disorder in students users
S. Salman Alavi , Fereshte Jannatifard, Mehdi Eslami, Hossein Rezapour
, alavi@sdlrc.mui.ac.ir
Abstract:   (9712 Views)
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Background: Internet occupies a large part of youth's life and each year more reports are published a bout Internet addiction disorder (IAD).This study argues the validity and reliability of Young Diagnostic Questionnaire (YDQ) correspondence Iranian society and culture.

Materials and Method: This is a cross-sectional and descriptive-analytical research. For these purpose 400 students of Isfahan universities were subjected. Sampling method was quota sampling. Cases completed demographic questionnaire, Compulsive Internet Use Scale (CIUS) and YDQ (Young Diagnostic Questionnaire). Finally we performed a psychiatric interview (based on DSM-IV-TR) for all of the samples. For data analysis we used face, discriminative and concurrent validity, Chronbach α, split half, test-retest and ROC Curve by SPSS-14 Software.

Results: Concurrent validity was (r=0.78, 0.81), discriminative validity was (r=0.62). Besides YDQ shows internal consistency (α=0.70), split-half validity(r=0.64), test –retest reliability (r=0.74, p<0.01). The best cut off point for this questionnaire is number 4.

Conclusion: The result showed that Persian version of YDQ is valid and reliable. Considering lack of a valid and reliable questionnaire for measuring addiction to the internet, YDQ could be a suitable tool for measuring internet addiction in future research. [ZJRMS, 2011 13(7):34-38]

 

Keywords: Internet, addictive behavior, validity, reliability, students
Full-Text [PDF 203 kb]   (9035 Downloads)    
Type of Study: Research | Subject: Psychiatry
* Corresponding Author Address: Msc of Psychology, School of Management and Medical Informatics, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.
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Alavi S S, Jannatifard F, Eslami M, Rezapour H. Survey on validity and reliability of diagnostic questionnaire of internet addiction disorder in students users. ZJRMS. 2011; 13 (7) :34-38
URL: http://zjrms.ir/article-1-1568-en.html
Volume 13, Number 7 (December 2011) Back to browse issues page
Zahedan Journal of Research in Medical Sciences
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