Psychometric evaluation of the internet addiction test in India.

The Internet Addiction Test is a widely used assessment of symptoms of internet addiction. Although originally proposed as assessing different components of internet addiction, research has been mixed in terms of its factor structure. This study is the first to examine the psychometric properties of the IAT in an Indian population. A large sample (N = 2700) of Indians living in the Southern city of India were recruited door-to-door and completed the IAT and other validity measures. In Study 1, an exploratory factor analysis (n = 1375) indicated a one-factor structure, with 13 items measuring symptoms of internet addiction. This short-form IAT showed construct and convergent validity by correlating with higher daily internet use, higher scores on measures of problematic internet gaming, social media use, and smartphone use, and functional impact. In Study 2, confirmatory factor analysis (n = 1375) indicted this one-factor structure was a good fit to the data, and the correlations with validity measures were replicated. This short-form IAT appears to be valid as a measure of one underlying factor of problematic internet use in young Indian adults.