1. Central Tendency, Spread, or Symmetry?
How many dependent variables does your question
have?
One Two or More
2. Central Tendency, Spread, or Symmetry?
What is a dependent variable?
The dependent variable is the thing
3. Central Tendency, Spread, or Symmetry?
What is a dependent variable?
The dependent variable is the thing being influenced
4. Central Tendency, Spread, or Symmetry?
dependent variable
Does Age influence Driving Speed?
Do Bonuses influence Employee Productivity?
Do Promotions influence Employee Retention?
What is a dependent variable?
The dependent variable is the thing being influenced
5. 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
6. Example of a question with
ONE dependent variable
7. Example of a question with
ONE dependent variable
Does the new employee self-initiative plan increase
employee productivity?
1
8. Example of a question with
TWO dependent variables
9. Example of a question with
TWO dependent variables
Does the new employee self-initiative plan increase
employee productivity and employee retention?
1 2
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?
15. One Two or More
Does the morning, afternoon, or evening shifts
have the highest employee satisfaction rates?
Explanatory Variable dependent variable
Assigned shift influence Employee satisfaction rates 1
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?
20. One Two or More
Does product A or B produce higher profits and
lower costs?
Explanatory Variable dependent variables
Product type (A or B) Higher profits
Lower costs
1
2
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?
25. One Two or More
Which training method (A, B, or C) brings about
greater trainee proficiency?
Explanatory Variable dependent variable
Training Method Training proficiency 1
26. Central Tendency, Spread, or Symmetry?
Return to your original question. How many
dependent variables does your question have?
One Two or More