Select the response that is correct from the list of choices. Highlight your selection to indicate it as your answer. Add an explanation of why you made that choice.
1. Which of the following designs for a study meets the assumptions for the one-way analysis of variance (ANOVA)?
A. IV: Height in Inches, DV: Gender (Male, Female)
B. IV: Beverage drunk before testing (Alcoholic, Non-Alcoholic), DV: Rank given to each drink for enjoyability
C. IV: Beverage drunk before testing (Alcoholic, Non-Alcoholic), DV: Number of math problems solved correctly on test
D. IV: Beverage drunk before testing (Alcoholic, Non-Alcoholic, No drink), DV: Number of math problems solved correctly on test
Correct answer(s): D
2. The final F-value computed in a one-way ANOVA is affected by
A. The differences among the group means
B. The variability within each group
C. The sample sizes
D. All of the above
Correct answer(s): D
3. The F-ratio is a comparison of the amount of Between-Group Variability to the amount of Within-Group Variability.
A. True
B. False
C. Correct answer(s): True
4. You have computed the following F-value, F(2,8) = 4.50.What is the criterion value against which you would compare this value to see if it is statistically significant at the .05 level? (Hint: Go to Table B.4)
A. 19.37
B. 8.65
C. 95
D. 4.46
Correct answer(s): D
5. What is the value for the missing number in this part of a one-way ANOVA table for independent samples?
Source df
Treatment 3
Error ?
Total 47
A. 19
B. 41
C. 44
D. .05
Correct answer(s): C
6. What is the F-value that would be computed from the following?
Source MS F
Treatment 159 ?
Error 37
A. 4.30
B. 122.0
C. 5809
D. It can't be computed from the information that is given
Correct answer(s): A
7. A post hoc comparison of means can be done whether or not you get a significant F-value.
A. True
B. False
Correct answer(s): False
8. The Tukey Honestly Significant Difference (HSD) test can be used for comparing means when you have independent groups.
A. True
B. False
Correct answer(s): True
9. With a repeated measures one-way ANOVA, you can now compare and explain the scores in the different treatment conditions for a single person with his/her own behavior in the other treatment conditions.
A. True
B. False
Correct answer(s): True
10. The analysis table for the one-way ANOVA with repeated samples allows you to break within-groups variability into one part that can be explained by subject variability and one part that remains unexplained error.
A. True
B. False
Correct answer(s): True
11. The factorial analysis of variance (ANOVA) allows you to analyze data where you have
A. More than one IV
B. More than one DV
C. Only one IV but with an infinite number of conditions
D. None of the above
© 2011. Grand Canyon University. All Rights Reserved.
ecl569
psy845.v10r.module6problemset.docx
0
