They are in every magazine and newspaper around the globe. Some are researched properly, but most are misleading and poorly studied. Surveys, the end all statistical evidence to a debate, tend to ask the wrong questions and leave out the most important ones. A study was done on whether bartenders are better at guessing an individual's age than most people. these surveys, all funded with taxpayers money (either my grants or consumer markups), don't ask the right questions and then publish incorrect figures. bartenders were given pictures w/ under and over age women/men. they were 80% correct guessing legal drinking women and 97% correct with men. this information is very misleading b/c it was not correctly gathered. body language is the tell in every faucet of sales, but it was left out. a picture can not show a true demeaner or attitude. before you use a survey as very close fact, see how they were conducted and tested.