PATTERSON~Dr Galena K. Rhoades on the results of a study showing co-habitation prior to marriage increases the chance of divorce.
http://www.radiolive.co.nz/Audio/AudioPlayer/tabid/183/Default.aspx?articleID=9864
http://www.radiolive.co.nz/Audio/AudioPlayer/tabid/183/Default.aspx?articleID=9864