“…In order to improve the content validity and accuracy, it is important to choose the Q sample origins (Cross, 2005;Montgomery, Killam, Mossey, & Heerschap, 2014). In some research, the Q sample was originated in openended questionnaires (Akhtar-Danesh, Dehghan, Morrison, & Fonseka, 2011;Jo, An, & Doorenbos, 2012); literature review (Backhaus et al, 2013;Harvey et al, 2013); focus groups (Baxter, Akhtar-Danesh, Valaitis, Stanyon, & Sproul, 2009;Ha, 2015a); semistructured interviews (Ho & Gross, 2015b;Pelletier, 2005); written narratives (Ha, 2015b;Yeun, Bang, Ryoo, & Ha, 2014); academic literature (Cross, 2005;Jo et al, 2012); observation (Marshall, West, & Aitken, 2011;McCaughan, Thompson, Cullum, Sheldon, & Thompson, 2002); and experts' opinions (Killam, Mossey, Montgomery, & Timmermans, 2013;Montgomery et al, 2014).…”