“…For this current study, we identified 25 of the 210 dissertations that used a comparison methodology to provide a window into how learning in PDS and non-PDS settings may differ. Of these dissertations, 12 were quantitative (Anderson, 1995;Coffelt, 2013;Gissy, 2010;Grissom, 2003;Hahn, 2000;Hamar, 2013;Lancaster, 2010;Newsome, 2003;Ogletree, 2007;Poe, 2003;Ray, 2013;Van Holten, 2016); 11 used a mixed methods approach (Bruemmer, 2018;Curtain, 2006;Dadlez, 1998;Grieb, 2000;Hildreth, 1997;Komorek, 2013;Kuchinski, 2005;Malin, 2002;Patterson, 2004;Starling, 1999;Wright, 2009); and only two were qualitative in nature (Hopper, 2016;Miller, 2014). A few of the dissertations had findings that informed more than one category.…”