An Evaluation of Internet Addiction Test (IAT)

Internet has changed society's lifestyle in the direction that completely modern and digital. But the excessive use of the internet may cause dependency or addiction effects. Internet Addiction Test (IAT) is the most frequent instrument used to measure someone's internet addiction level. This paper will conduct a review of the IAT questionnaire through reliability and validity tests based on the online survey result in 385 Indonesian netizens. The reliability test result shows the Cronbach's Alpha value at 0.905, which means the measurement is reliable. The results of the validity test show that the items in the IAT instrument are valid. In addition, this paper also reviews some related scientific literature which showed that it was necessary to evaluate the IAT instrument.