Reason for having sex

There is a glut of research conducted on myriad topics and among them are the perennial favorites like sex, anger and marriage. These topics have been researched, analyzed and surveyed to death, yet every other day you have results of a new one published.

Most of these researches are online surveys open to public. They guarantee anonymity and garner maximum response. Furthermore, participants know that quixotic answers gather the maximum publicity.

In this scenario how many of the respondents are serious? How do you sieve a truthful response from an artful response for a topic like ‘New reasons for having sex’?