Assessing the Reliability, Dimensions, and Variance of Young's Internet Addiction Test by Applying it to Adolescents at the National Psychiatric Hospital in Costa Rica

Moreover, the first dimension of the IAT found, the loss of self-control, is extremely important because it explains 34% of the variance of the data. However, 74% of the variance is explained by applying the 7 dimensions identified in this research. Also, the reliability analysis showed that the IAT is 89% reliable, which indicates that the elements comprising the test used in this research are suitable for measuring the construct of Internet addiction.