Frequency is not enough: Patterns of use associated with risk of Internet addiction in Portuguese adolescents

This paper reports an exploratory analysis of the relation between Internet addiction and patterns of use among Portuguese adolescents (n = 2617) from the WHO 2010 Health Behavior in School-aged children study, with a short version of Young's Internet Addiction Test (the brief Internet Addiction Questionnaire - bIAQ) and self-reports on online behaviors and access. Two-Step Cluster analysis identified two clusters of users based on their usage pattern: a minority of high-frequency users, with higher bIAQ scores, and a majority of low-frequency users, with lower bIAQ scores. Low and high-frequency users are particularly distinct in specific activities, which converges with previous research showing addiction to specific Internet activities rather than to the Internet as a whole.