Rosenthal and Jacobsen Studied Whether Teachers' Expectations Would Influence Students

Multiple Choice

Rosenthal and Jacobsen studied whether teachers' expectations would influence students' performance by telling elementary school teachers that randomly chosen students had extremely high IQs. The students who had been randomly chosen did indeed do better than those who had not. Considering the students who were NOT randomly identified with "high IQs", and who did NOT do as well in the class, a problem with Rosenthal and Jacobsen's research is

A) Overstating results
B) Value neutrality
C) Confounding correlation with causation
D) Causing potential harm to research subjects