Paik, who reported the findings in the journal Social Science Research, said the research suggests that the courtship process acts as a <b>screening mechanism</b>.<br/><br/>Please explain to me what "screening mechanism" means here.<br/><br/>Source : <a href="http://in.news.yahoo.com/137/20100820/778/tod-looking-for-true-love-take-your-time_1.html"><a href='http://in.news.yahoo.com/137/20100820/778/tod-looking-for-true-love-take-your-time_1.html' target='_blank' rel='nofollow'>http://in.news.yahoo.com/137/20100820/778/tod-looking-for-true-love-take-your-time_1.html</a> </a>