The most concrete way this contagion has been analyzed in the classroom relates to the enthusiasm of the teacher and the effect that strong enthusiasm can have on student learning. For example, Cavanagh pointed to a study in which researchers measured markers of enthusiasm among teachers of secondary students in a Swiss school and found a startling correlation between those markers and the experiences of the students in the classroom: “The enthusiasm of the educators statistically predicted their students' ratings of enjoyment and perceived value in the subject matter” (Cavanagh 2016, p. 64).
