The Effect of Virtual Networks on Academic Performance of Student's Girls and Happiness in High School

The aim of this research was to investigating the effects of virtual social networks (WhatsApp, tango and …) on academic performance and happiness of high school students. This research is the practical research type and in terms of style of data collection, is a descriptive research in type of causal-comparative. Statistical society has been the entire second course of Algooneh public high school students in district 3 of Shiraz that their number has been 360 people. 60 people are students that have been used virtual social networks in one hour or more than one hour in a day as well as 60 people are students that have been used virtual social networks less than one hour in a day. They have formed statistic society and they were selected by targeted sampling approach. For collecting data, we used Pham and Taylor academic performance questionnaire (1990) and Oxford Rjill, Martin and Crosland gaiety questionnaire (1989). For data measurement and analysis, we used SPSS software and descriptive and inferential statistics in level of punctual 0.5. In this research we used descriptive statistic indicators such as average, standard deviation and also inferential statistic tests such as T independent groups and pair of strings analysis of variance (ANOVA) and Post Hoc. The results of research showed that virtual social networks have no meaningful effect on academic performance and happiness, as well as there is no significant difference between majors