Table 2.

Search results by design and participant

Design	Participants	Studies
Between subjects	Human	(Bolívar & Dallery, 2020), (Cox et al., 2019), (Okouchi, 2015), (Pittenger et al., 1988), (Reed, 2019), (Reed & Clark, 2011), (Smith et al., 2017), (Thrailkill et al., 2019)
Between subjects	Nonhuman	(Bouton & Schepers, 2014), (Bouton & Trask, 2016), (Brown et al., 2020), (Craig et al., 2016, 2017a, b), (Craig & Shahan, 2016), (Enkema et al., 1972), (Frye et al., 2018), (Galizio et al., 2018), (Hernandez et al., 2020), (Kestner et al., 2015), (Leitenberg et al., 1970), (Leitenberg et al., 1975), (Liddon et al., 2017), (Lieving & Lattal, 2003), (Moriyama et al., 2015), (Nakajima et al., 2002), (Nall et al., 2018), (Oliver et al., 2018), (Pacitti & Smith, 1977), (Pyszczynski & Shahan, 2014), (Rawson et al., 1977), (Sánchez-Carrasco & Nieto, 2011), (Schepers & Bouton, 2015), (Shahan et al., 2020a), (Sweeney & Shahan, 2013b, 2015), (Trask et al., 2018), (Winterbauer & Bouton, 2010, 2011, 2012), (Winterbauer et al., 2013)
Combo	Human	(Dixon & Hayes, 1998), (King & Hayes, 2016), (McHugh et al., 2012), (St. Peter Pipkin et al., 2010), (Podlesnik et al., 2020), (Sweeney et al., 2014)
Combo	Nonhuman	(Bouton & Trask, 2016), (Cook et al., 2020), (Kearns & Weiss, 2007), (Leitenberg et al., 1970), (Leitenberg et al., 1975), (Podlesnik & Kelley, 2014), (Quick et al., 2011), (Rawson & Leitenberg, 1973), (Reed & Morgan, 2007), (Shahan et al., 2020b), (Trask, 2019), (Trask & Bouton, 2016)
Other	Human	(Bolívar et al., 2017), (Sweeney & Shahan, 2016)
Within subjects	Human	(Alessandri & Cançado, 2020), (Alessandri et al., 2015), (Benavides & Escobar, 2017), (Bruzek et al., 2009), (Diaz-Salvat et al., 2020), (Doughty et al., 2010, 2011, 2014), (Galizio et al., 2020), (Garner et al., 2018), (Ho et al., 2018), (Houchins et al., 2022), (Kestner et al., 2018a, 2018b), (Kimball et al., 2018), (Kuroda et al., 2016), (Lambert et al., 2015), (Liggett et al., 2018), (Marsteller & St. Peter, 2012), (Podlesnik et al., 2019), (Robinson & Kelley, 2020), (Romano & St. Peter, 2017), (Shvarts et al., 2020), (Williams & St. Peter, 2020), (Wilson et al., 2016), (Wilson & Hayes, 1996)
Within subjects	Nonhuman	(Bachá-Méndez et al., 2007), (Bai et al., 2017), (Cançado et al., 2015), (Cançado & Lattal, 2011, 2013), (Cleland et al., 2000), (Cook & Lattal, 2019), (Cook et al., 2020), (Craig et al., 2018, 2020), (da Silva et al., 2008, 2014), (Doughty et al., 2007), (Dube et al., 2017), (Elcoro et al., 2019), (Epstein, 1983), (Fontes et al., 2018), (Fujimaki et al., 2015), (Ho et al., 2018), (Jarmolowicz & Lattal, 2014), (Kincaid et al., 2015), (Kincaid & Lattal, 2018), (Kuroda et al., 2017b, 2020), (Lattal et al., 2019), (Liddon et al., 2017), (Lieving & Lattal, 2003), (Mulick et al., 1976), (Nevin et al., 2016), (Nighbor et al., 2018, 2020), (Oliver et al., 2018), (Podlesnik et al., 2006, 2019), (Podlesnik & Shahan, 2009, 2010), (Pyszczynski & Shahan, 2013), (Reed & Morgan, 2006), (Shahan et al., 2015), (Shvarts et al., 2020), (Sweeney et al., 2014), (Sweeney & Shahan, 2013a), (Thrailkill & Shahan, 2012), (Trask, 2019), (Trask & Bouton, 2016), (Trask et al., 2018), (Winterbauer & Bouton, 2011)