First of all, this might be a mix-sectional research, and therefore, causality cannot getting established between mobile addiction and you can despair, stress, ADHD, smoking, and you will alcohol explore. Prospective training to help establish correspondence and causality between portable addiction and these parameters are very important. Subsequently, since investigation inhabitants is actually limited to men and women attending center otherwise higher universities inside a certain urban area, the fresh new test is almost certainly not a real logo off most other teenagers inside the South Korea. Although not, because of the great number of pupils that were interviewed in colleges along the area, they signifies the advantages of teenagers regarding the tested area quite really. As the study are limited to teens, generalization some other age groups is difficult. Eventually, new questionnaire is based available on worry about-report, together with collection of market parameters.