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Central Tendency, Spread, or Symmetry?
What is a variable of interest?
The variable of interest is the thing
Central Tendency, Spread, or Symmetry?
What is a variable of interest?
The variable of interest is the thing being influenced
Central Tendency, Spread, or Symmetry?
Variable of Interest
Does Age influence Driving Speed?
Do Bonuses influence Employee Productivity?
Do Promotions influence Employee Retention?
What is a variable interest?
The variable of interest is the thing being influenced
Central Tendency, Spread, or Symmetry?
Explanatory Variable
Does Age influence Driving Speed?
Do Bonuses influence Employee Productivity?
Do Promotions influence Employee Retention?
What is an explanatory variable interest?
The explanatory variable is the thing doing the influencing
Example of a question with
ONE variable of interest
Example of a question with
ONE variable of interest
Does the new employee self-initiative plan increase
employee productivity?
1
Example of a question with
TWO variables of interest
Example of a question with
TWO variables of interest
Does the new employee self-initiative plan increase
employee productivity and employee retention?
1 2
Let’s Practice!
How many variables of interest are there in each
question that follows?
One Two or More
Does the morning, afternoon, or evening shifts
have the highest employee satisfaction rates?
One Two or More
Does the morning, afternoon, or evening shifts
have the highest employee satisfaction rates?
One Two or More
Does the morning, afternoon, or evening shifts
have the highest employee satisfaction rates?
One Two or More
Does the morning, afternoon, or evening shifts
have the highest employee satisfaction rates?
Explanatory Variable Variable of Interest
Assigned shift influence Employee satisfaction rates 1
Next Example
One Two or More
Does product A or B produce higher profits and
lower costs?
One Two or More
Does product A or B produce higher profits and
lower costs?
One Two or More
Does product A or B produce higher profits and
lower costs?
One Two or More
Does product A or B produce higher profits and
lower costs?
Explanatory Variable Variable of Interest
Product type (A or B) Higher profits
Lower costs
1
2
Final Example
One Two or More
Which training method (A, B, or C) brings about
greater trainee proficiency?
One Two or More
Which training method (A, B, or C) brings about
greater trainee proficiency?
One Two or More
Which training method (A, B, or C) brings about
greater trainee proficiency?
One Two or More
Which training method (A, B, or C) brings about
greater trainee proficiency?
Explanatory Variable Variable of Interest
Training Method Training proficiency 1

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Variables of interest je jit - practice

  • 1. Central Tendency, Spread, or Symmetry? What is a variable of interest? The variable of interest is the thing
  • 2. Central Tendency, Spread, or Symmetry? What is a variable of interest? The variable of interest is the thing being influenced
  • 3. Central Tendency, Spread, or Symmetry? Variable of Interest Does Age influence Driving Speed? Do Bonuses influence Employee Productivity? Do Promotions influence Employee Retention? What is a variable interest? The variable of interest is the thing being influenced
  • 4. Central Tendency, Spread, or Symmetry? Explanatory Variable Does Age influence Driving Speed? Do Bonuses influence Employee Productivity? Do Promotions influence Employee Retention? What is an explanatory variable interest? The explanatory variable is the thing doing the influencing
  • 5. Example of a question with ONE variable of interest
  • 6. Example of a question with ONE variable of interest Does the new employee self-initiative plan increase employee productivity? 1
  • 7. Example of a question with TWO variables of interest
  • 8. Example of a question with TWO variables of interest Does the new employee self-initiative plan increase employee productivity and employee retention? 1 2
  • 10. How many variables of interest are there in each question that follows?
  • 11. One Two or More Does the morning, afternoon, or evening shifts have the highest employee satisfaction rates?
  • 12. One Two or More Does the morning, afternoon, or evening shifts have the highest employee satisfaction rates?
  • 13. One Two or More Does the morning, afternoon, or evening shifts have the highest employee satisfaction rates?
  • 14. One Two or More Does the morning, afternoon, or evening shifts have the highest employee satisfaction rates? Explanatory Variable Variable of Interest Assigned shift influence Employee satisfaction rates 1
  • 16. One Two or More Does product A or B produce higher profits and lower costs?
  • 17. One Two or More Does product A or B produce higher profits and lower costs?
  • 18. One Two or More Does product A or B produce higher profits and lower costs?
  • 19. One Two or More Does product A or B produce higher profits and lower costs? Explanatory Variable Variable of Interest Product type (A or B) Higher profits Lower costs 1 2
  • 21. One Two or More Which training method (A, B, or C) brings about greater trainee proficiency?
  • 22. One Two or More Which training method (A, B, or C) brings about greater trainee proficiency?
  • 23. One Two or More Which training method (A, B, or C) brings about greater trainee proficiency?
  • 24. One Two or More Which training method (A, B, or C) brings about greater trainee proficiency? Explanatory Variable Variable of Interest Training Method Training proficiency 1