Internet has a potential that will lead to important changes in our social life and our attitudes, behaviors and habits. Indeed, Internet seems to have started to change a number of social structures from family, friendship to business relationships [1] Internet serves many purposes such as information transfer, academic research, entertainment, communication and commerce. However, extremism in terms of time is observed other than this functional use of Internet. The aim of this study is to assess the recreational use of Internet by research assistants off-duty or off-education according to several variables (gender, civil status, educational level, duration of leisure time, fields, perceived income and perceived leisure time sufficiency, participation in scientific projects, capability of accessing Internet anywhere). 400 research assistants who worked in state universities in Ankara (Gazi, Hacettepe, METU, and Ankara) in the spring term of 2014-2015 participated to the research. The data collection tools are the "Personal Information Form" and the "Addiction Profile Index Internet Form (BAPINT)". BAPINT is about the recreational use of Internet off-duty or off-education (e.g. gaming, social media, e-mailing, websites, chat rooms, forums, etc.) Frequency and percentage calculations, t-test, One-Way ANOVA test were utilized in the analysis and interpretation of the data and the significance level was found to be 0.05 using Tukey's range test to determine the difference between the groups. Consequently, significance differences were found between BAPINT scores of the gender, civil status, educational level, duration of leisure time and perceived leisure time sufficiency variables while no significance difference was found between the BAPINT scores of the variables perceived income, participation in scientific projects, capability of accessing Internet anywhere, and fields.