RESEARCH STUDY 6.1
Professor Kramer has decided to measure how happy his students are with his teaching this semester. He is teaching two classes this semester-Psychology and Law class and Introduction to Neuroscience class. His survey has the following questions.

-Refer to Research Study 6.1 above to answer the following question. In the above scenario,Dr.Kramer plans to give his survey only to his Psychology and Law students because he sees them on Mondays,Wednesdays,and Fridays and he can spare the class time (unlike his Tuesday/Thursday Introduction to Neuroscience class).Which of the following is true?
A) This will lead to a biased sample because the type of students who take Psychology and Law may be different from the type of students who take Introduction to Neuroscience.
B) This will lead to a biased sample because of self-selection.
C) This will lead to a biased sample because the Research Methods students have a lot of time to complete the survey.
D) The will lead to a sample that is representative of both of his classes.
E) None of the above are true.

Question

RESEARCH STUDY 6.1
Professor Kramer has decided to measure how happy his students are with his teaching this semester. He is teaching two classes this semester-Psychology and Law class and Introduction to Neuroscience class. His survey has the following questions.
 
-Refer to Research Study 6.1 above to answer the following question. In the above scenario,Dr.Kramer plans to give his survey only to his Psychology and Law students because he sees them on Mondays,Wednesdays,and Fridays and he can spare the class time (unlike his Tuesday/Thursday Introduction to Neuroscience class).Which of the following is true?
A) This will lead to a biased sample because the type of students who take Psychology and Law may be different from the type of students who take Introduction to Neuroscience. 
B) This will lead to a biased sample because of self-selection. 
C) This will lead to a biased sample because the Research Methods students have a lot of time to complete the survey. 
D) The will lead to a sample that is representative of both of his classes. 
E) None of the above are true.

Quizplus · Accepted Answer

By only surveying his Psychology and Law students, Dr. Kramer is selecting a non-random sample based on convenience. The students who take those classes may not be representative of the entire population of students who are taking classes with Dr. Kramer, since they may have different motivations for taking those particular classes. This could lead to a biased sample.

RESEARCH STUDY 6.1 Professor Kramer Has Decided to Measure How Happy His Students