Suppose You Wish to Determine the Average Height of the Students

Multiple Choice

Suppose you wish to determine the average height of the students at your school. Which one of the following describes the sample whose results would be LEAST likely to generalize to the school population?

A) Measure the height of a large number of students who have been randomly selected from introductory psychology classes at your school.
B) Measure the height of the basketball team(s) at your school.
C) Measure the height of a large number of students whose names have been randomly selected from the school's telephone directory.
D) Measure the height of a large number of students randomly selected from a larger group whose college grade point average is 2.0 or above.
E) Measure the height of subjects who sign up to participate in the experiment in return for money.