Questionnaire on Social Network Sites

Introduction:  Thank you for coming into the questionnaire on Social Network Sites.This questionnaire is about people's usage of SOCIAL NETWORK SITES, such as facebook, twitter, linkedIn, and so on. This is definitely an ANONYMOUS questionnaire, so nothing related to your personal information will be asked. The result will be only used for our group study(TIETS38, Testing, security and Trust), and you can view the result if you want.It will take you about 10 minutes to finish the following mostly 18 questions.