Green, Donald P., Mary C. McGrath & Peter M. Aronow (2013) Field Experiments and the Study of Voter Turnout, Journal of Elections, Public Opinion & Parties 23(1): 27-48. DOI:10.1080/17457289.2012.728223
Although field experiments have long been used to study voter turnout, only recently has this research method generated widespread scholarly interest. This article reviews the substantive contributions of the field experimental literature on voter turnout. This literature may be divided into two strands, one that focuses on the question of which campaign tactics do or do not increase turnout and another that uses voter mobilization campaigns to test social psychological theories. Both strands have generated stubborn facts with which theories of cognition, persuasion and motivation must contend.
Link to abstract here.