“…Over the following decade, the methods were applied and refined for teaching, and professors collected evidence on their efficacy (Berk, 1996(Berk, , 2000(Berk, , 2001b(Berk, , 2002(Berk, , 2003Berk & Nanda, 1998). Researchers tested additional techniques over the next 20 years (Ageli, 2018;Appleby, 2018;Baysac, 2017;Berk, 2002Berk, , 2003Berk, , 2005Berk, , 2008aBerk, , 2008bBerk, , 2009bBerk, , 2014Berk & Nanda, 2006;Bolkan, Griffin, & Goodboy, 2018;Daumiller, Bieg, Dickhäuser, & Dresel, 2019;Glaser & Bingham, 2009;Hackathorn et al, 2011;Jonas, 2019;Miller, Wilson, Miller, & Enomoto, 2017;Suzuki & Heath, 2014;Torok, McMorris, & Lin, 2004;Wanzer, Frymier, & Irwin, 2010).…”