Lesson 11: Design of Experiments

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October 5, 2016 at 10:00 am  •  Posted in f16-busad265 by  •  0 Comments

Wed, Oct 5

Review:

  • Exam 1 Results
  • Make-up due Mon, Oct 10

Presentation:

  • Design of Experiments
    • Explanatory variables
    • Response variable
    • Subjects – objects or participants in experiment
    • Treatments – experimental conditions
  • Example
    • Explanatory variables
      • Exam 1 Part 1 begin day/time
      • Hours of sleep night before exam
    • Response variable:
      • Exam 1 Score
    • Subjects
      • Students
    • Treatments
      • Open book vs Closed book
      • Written vs Multiple Choice
      • Morning vs Afternoon
  • Experimental Design Principles
    • Comparison of Treatments
      • Placebo effect
      • Control group
    • Randomize assignments
      • Bias
      • Double-blind
    • Repetition
      • Limit impact of individual observations
      • Confirm hypotheses
  • Design of Experiments video

Activity:

  • Divide into groups
  • Read and discuss Example 3.7 on p. 178
  • Read and discuss Exercise 3.19 on p. 192-193
  • Design an experiment
    • Response variable = Exam 2 Test Scores (yes, the exam you will take)
    • Subjects = Students in Inferential Statistics
    • Explanatory variables
      • What data elements could be measured or collected?
    • Treatments
      • What treatments could be implemented?
  • Submit written description of your groups Experimental Design
    • How will treatments be compared?
    • How can treatments be randomly assigned to subjects?
    • How can the experiment avoid bias?
    • Include team member names

Assignment:

  • Read pp. 178-192, Design of Experiments

 

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