“…Goddard, et al, 2007;Bryk et al, 1999;Caron & M. J. McLaughlin, 2002;Hollins, 2004;McDuffie, 2009;Pounder, 1999;Ronfeldt et al, 2015;Rosenholtz, 1989;Shachar & Shmuelevitz, 1997;Sun, 2016). Concerning music teachers, a number of qualitative studies have documented the importance of collaboration (Battersby & Verdi, 2015;Gruenhagen, 2012;Kastner, 2014;Pellegrino, Sweet, Derges-Kastner, Russell, & Reese, 2014;Sindberg, 2011;Sindberg, 2016;Stanley, 2012;Stanley, Snell, & Edgar, 2014). I found no quantitative studies on collaboration amongst music teachers, prompting the current pilot study on K-12 music teachers in Iowa.…”