Závislost na počítačových hrách

This bachelor thesis deals with the problem of computer games addiction. The attention is paid mainly to on-line games for more players. The purpose of this thesis was to describe this problem and to check - through questionnaire investigation - if the addiction to computer games and the impacts connected with the games really deserve excessive experts and laics attention. The thesis has two parts -- theoretical and practical ones. The theoretical part describes the possibilities of diagnosing the on-line games addiction and digests the up to date knowledge and opinions of the expert public. Furthermore the readers are acquaint with the computer games, with their attractiveness for the players and with the effects, which are connected with this specific addiction - aggressiveness, health impacts, social effects. In the practical part the attention is paid to the results of the questionnaire investigation, which was focused on the players of the most hazardous playing genre from the dependence point of view -- the MMORPG (Massive Multiplayer Online Role Playing Games). Two methods were used for determining the percentage of the addicted players. Furthermore the practical part proves the hypotheses dealing with the aggressiveness of the MMORPG players and with the positive impacts of the computer games. Thanks to the theoretical and practical parts, the thesis confirmed that uselessly too much attention is paid to the computer games addiction, because the most negative effects were disproved or at least questioned. The practical part demonstrated among other that for the time being the diagnostic methods are not on such a level so as to be able to identify the problematic persons with certainty.