The Study at the U

Multiple Choice

The study at the U.S.Air Force Academy Preparatory School that demonstrated that students' performance can be affected by teachers' expectations was most likely due to the fact that

A) studies in the field are more unpredictable than those in the laboratory.
B) naturalistic observation pointed out differences not controlled by a laboratory experiment.
C) teachers treated the students differently, thereby creating a self-fulfilling prophecy.
D) the two groups were not equal at the start of the experiment.