Analysis of Psychometrics Properties of Internet Attitude Scale (IAS_40)

Document Type : Original Article(s)

Authors
Sayyedabbas Haghayegh 1
Mohammadbagher Kajbaf 2
Ahmad Shabani 3
Mohammad Nikbakht 4
Hojattolahe Farahani 5
1 MSc, Clinical Psychology, Isfahan University, Isfahan, Iran
2 Assistant Professor, Psychology, Isfahan University, Isfahan, Iran
3 Associate Professor, Library and Information Science, Isfahan University, Isfahan, Iran
4 BSc, Psychology, Isfahan University, Isfahan , Iran
5 Psychology, Isfahan University, Isfahan, Iran
Abstract
Abstract Introduction: The purpose of present research is to investigate psychometrics properties of internet Assessment Scale (IAS-40),as a comprehensive instrument which includes four subscales: Internet Anxiety, Internet Usefulness,  Enjoyment and Self efficacy Methods: This is a survey research .For this purpose,359 Esfahan, Najafabad and Khorasgan university students who have been engaged in education and study in 2006-2007 education year were selected as study sample. Results: The results of final analysis showed that all four subscales have high (internal consistency) and (test-retest) reliability. Concurrent validity of internal Anxiety (r=.53) and Self efficacy(r=.55) were significant.(p=.05).Results of Confirmatory Factor Analysis(CFA)showed that the four factors have completed harmony with main structure of questionnaire and all factors were significant. Conclusion: This scale is a valid, reliable and useful instrument. Keywords: Internet; Psychometry; Psychological Tests; Ration Value Scales