A professor provides a special study guide to the students who chose seats in the front two rows of class.Later these students get better than average test scores.What is wrong with this experiment?
A)The professor failed to provide demand characteristics.
B)The procedure probably had too many independent variables.
C)Students were not randomly assigned to groups.
D)The experiment did not have a hypothesis.

Question

A professor provides a special study guide to the students who chose seats in the front two rows of class.Later these students get better than average test scores.What is wrong with this experiment?​
A)The professor failed to provide demand characteristics.
B)​The procedure probably had too many independent variables.
C)​Students were not randomly assigned to groups.
D)​The experiment did not have a hypothesis.

Quizplus · Accepted Answer

The experiment did not randomly assign students to groups, which means that there could be other factors affecting the results besides just sitting in the front two rows. The students who chose to sit in the front two rows could have been more motivated or engaged in the class, which could have led to their better test scores. Therefore, the results cannot be reliably attributed to the professor's study guide.

A Professor Provides a Special Study Guide to the Students