It is true that the scope of use of each of these methods is different, meaning that the data in figure IV.8 can only show frequency of use for each type of method. But recent experimental and quasi-experimental studies in the United States turned up similar findings (Abma, Martinez and Copen, 2010, Raine and others, 2011). This refers both to legislation decriminalizing abortion and to decriminalizing and guaranteeing access to emergency contraception.