Author Question: With regard to external validity, what is the main problem with only using undergraduate psychology ... (Read 54 times)

rosent76 · **on:** Jun 20, 2018

With regard to external validity, what is the main problem with only using undergraduate
psychology students in psychological research?

A) Results may be biased because most students do research to earn money or extra credit.
B) Results may not apply to a larger group of people because students are different from
other people in the United States and around the world.
C) Results may not apply to a larger group of people because it is not a random sample.
D) Results may be biased because there are more women in psychology than men.

Question 2

The assumption of parametric tests of significance that the variances of the populations are
equivalent is called

A) homogeneity of variance B) assumption of normality
C) heterogeneity of variance D) equivalence of variance