Which outcome has not demonstrated in research on physical attractiveness?
a. Attractive students were able to solicit more signatures on a petition than unattractive students.
b. Unattractive defendants received larger court fines than attractive defendants.
c. Teachers expect attractive children to be smarter and achieve more than unattractive children.
d. Attractive employees earn approximately the same salaries as unattractive employees.
Question 2
Subject variables are characterized by all of the following except that they
a. are neither dependent nor truly independent variables.
b. cannot be manipulated or randomly assigned.
c. may include gender and ethnicity of participants.
d. are essential for field experiments.
