“…However, the attitude factor rarely stands alone; it is usually accompanied by other factors, such as beliefs, perceptions, opinions, or knowledge. Thus, based on related studies in the field, such as those by Liljenberg and Andersson [13], Touloupis and Athanasiades [14], Nehez and Blossing [15], and Maelan, Tjomsland, Baklien and Thurston [16], principals' attitudes should also be investigated.…”