Question

A statistics instructor wants to see if allowing students to use a notecard on exams will affect their overall exam scores. The instructor thinks that the results could be affected by the type of class: traditional, Web-enhanced, or online. He randomly selects half of his students from each type of class to use notecards. At the end of the semester, the average exam grades for those using notecards is compared to the average for those without notecards.

Required:
a. What type of experimental design is this?
b. What is the response variable in this experiment?
c. What is the factor that is set to predetermined levels? What are the treatments?
d. Identify the experimental units.

Answer 1

Throughout the clarification section elsewhere here, the definition of the concern is discussed.

Explanation:

• This seems to be an experimental analysis where the students were purposely administered an assessment and treatment of someone using notecards towards examine a potential improvement in the answer or calculated indicator that is average scores.
• Overall test scores are the answer component.
• Through the use of notecards seems to be the explanatory component. The vector degree is 'Used' either 'Not Used.'
• The participants offering the test seem to be the experimental groups.