Participants are randomly assigned to different groups which either serve as controls--acting as reference points because they are tested with regard to the dependent variable, albeit without having been exposed to any independent variables of interest--or receive one or more treatments.. 
Many more ununzedzed journals also exist.Ẹ tún wo History of Social Science History of sociology list of Sociologists list of sociology Journals subFields of sociology Timeline of sociology Sociological the tọ́kasíd|Isawig|ei=N|London|London Name="transformation" B&ved, John.. 