... Table 1 provides a summary of the studies, classified by method of analysis, dependent variables and independent variables. Davis et al, 2003;Tang et al, 2010;Beirne and Lambin, 2013 Method: structural equation modelling Farmer and Fedor, 1999;Grube and Piliavin, 2000;Vecina and Chacón, 2005;Costa et al, 2006;Boezeman and Ellemers, 2007;Kim et al, 2007;Waters and Bortree, 2007;Peloza et al, 2009;Tang et al, 2010;Dwiggins-Beeler et al, 2011;Vecina et al, 2012;Huynh et al, 2012;Allen and Mueller, 2013;Dwyer et al, 2013;Haivas et al, 2013;Van Schie et al, 2015;Alfes et al, 2016;Malinen and Harju, 2017 Method: crosssectional correlations and regression Nelson et al, 1995;Cnaan and Cascio, 1998;Farmer and Fedor, 2001;Hager and Brudney, 2004;Peterson, 2004;Finkelstein et al, 2005;Wisner et al, 2005;Cuskelly et al, 2006;Hellman and House, 2006;Hobson and Heler, 2007;Kulik, 2007;Caldwell et al, 2008;Finkelstein, 2008;Karl et al, 2008;Millette and Gagné, 2008;Booth et al, 2009;Hidalgo and Moreno, 2009;Hustinx and Handy, 2009;Stukas et al, 2009;Tang et al, 2009;Garner and Garner, 2011;Stirling et al, 2011;Gazley, 2012;Nesbit and Gazley, 2012;Dwyer et al, 2013;Østerlund, 2013;Presti, 2013;Vecina et al, 2013;Hager, 2014;Newton et al, 2014;Gatignon-Turnau and Mignonac, 2015;Hager and Brudney, 2015;Studer, 2015;Erasmus and Morey, 2016;Hyde et al, 2016;Nencini et al, 2016;Rogers et al, 2016 Method: experiment Clary et al, 1994;Fisher and Ackerman, 1998;Boezeman and Ellemers, 2007, 2014a, 2014b Dependent variable: intent to continue volunteering Farmer and Fedor, 1999;Grube and Piliavin, 2000;Vecina and Chacón, 2005;Wisner et al, 2005;Hellman and House, 2006;Kim et al, 2007;Karl et al, 2008;Millette and Gagné, 2008;Hidalgo and Moreno, 2009;Stukas et al, 2009;Dwiggins-Beeler et al, 2011;Gazley, 2012;Huynh et al, 2012;Allen and Mueller, 2013;Vecina et al, 2013;Newton et al, 2014;Hyde et al, 2016;Nencini et al, 2016 Dependent variable: volunteer satisfaction Cnaan and Cascio, 1998;Boezeman and Ellemers, 2014a;Costa et al, 2006;Hellman and House, 2006;Hobson and Heler, 2007;Kulik, 2007;Craig-Lees et al, 2008;Finkelstein, 2008;Karl et al, 2008;Stukas et al, 2009;Dwiggins-Beeler et al, 2011;Garner and Garner, 2011;Vecina et al, 2012;Dwyer et al, 2013;Nencini et al, 2016 Dependent variable: time volunteered Cnaan and Cascio, 1998;Fedor, 1999, 2001;Grube and Piliavin, 2000;Jamison, 2003;Finkelstein et al, 2005;Waters and Bortree, 2007;Craig-Lees et al, 2008;Finkelstein, 2008;Randle and Dolnicar, 2009 ...