The emergence and spread of mass media have caused ongoing and public discussions about their functions and the potential impact on the general population in the world that uses it. However, special attention of the general public and experts is constantly aroused by questioning the influence of the mass media on children as the most sensitive segment of the population. When it comes to conducting research that seeks to analyze this relationship, one gets the impression that most of the research is looking for possible negative aspects of media consumerism. However, more recent research shows a tendency to study the possible positive effects of media usage (Ilišin et al., 2001). The aim of this diploma thesis was to determine the connection between the usage of media and some aspects of learning (concentration and motivation) and social adjustment (sociability and loneliness) in fourth grade of primary school students. The data were collected by a questionnaire consisting of questions related to the students' gender, place of residence and the way of monitoring classes, then questions related to the daily usage of modern technology for learning and entertainment, and finally Likert's type of assessment scale for claims related to concentration , motivation, loneliness and sociability. The analysis of the results showed that there is no significant difference in the use of media for entertainment and educational purposes, but from these results a gender difference was noted, indicating that boys use media such as computers, tablets and mobile phones more for entertainment purposes. Regarding the main problem of the connection between media usage and concentration, motivation, loneliness and sociability, by processing the correlation coefficients, the results showed that intrinsically motivated and more sociable students use less computer/tablet/mobile phone for fun.