What variable would account for the dramatic jump in test scores evidenced by the students in Rosenthal and Jacobson's Pygmalion in the Classroom?

Question

Quizplus · Accepted Answer

The Pygmalion effect is a phenomenon where higher expectations lead to an increase in performance. In the study, the teacher's positive attitude and expectations of the students led to their significant improvement in test scores. Therefore, teacher attitudes would be the variable that accounts for the dramatic jump in test scores.

What Variable Would Account for the Dramatic Jump in Test