# EDUC 812 Quiz 3

**indigo11**

**IMPORTANT: AFTER PURCHASE, LOG IN TO YOUR ACCOUNT AND SCROLL DOWN BELOW THIS PAGE TO DOWNLOAD FILES WITH ANSWERS.**

1. The assumption of homogeneity of variances was tested, Leveneâ€™s Test, *F*(2, 432) = .75, *p* = .48. Was the assumption tenable?

2. One-way ANOVA has more assumptions than the independent samples *t* test.

3. Why would a researcher choose to conduct a one-way ANOVA rather than multiple independent samples *t*-tests?

4. Histograms are used for what purpose when conducting a one-way ANOVA?

5. Assuming that a researcher hopes to demonstrate that a treatment or group membership variable makes a significant difference in outcomes. Which term does the researcher hope will be larger: *MS*between or *MS*within?

6. An analysis of variance demonstratedthe following results for the effect of type of course, *F*(2,27) = 6.56, *p *= .07. Students in online courses (*M *= 12.4, *SD *= 2.26, *n* = 10), blended courses (*M *= 13.62, *SD *= 5.56, *n* = 10), and the residential courses (*M *= 14.65, *SD *= 7.56, *n* = 10) were measured on their sense of community. What can be concluded based on these results?

7. A one-way analysis of variance was conducted to evaluate the null hypothesis that there is no difference high school studentsâ€™ level of satisfaction with school based on their familyâ€™s socioeconomic status. The independent variable, socioeconomic status, included three groups: Low (*M *= 21.36, *SD *= 4.75, *n* = 147), Moderate (*M *= 24.10,*SD *= 4.15,* n *= 153), and High (*M *= 29.73, *SD *= 6.85, *n* = 135). The researcher found, *F*(2 , __?__ ) = 4.64, *p* = .01. What is the df for

8. The result of a one-way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) was F(3, 117) = 3.827, p < .05. The corresponding effect size,Î·2 = .26. What can be concluded about these results?

9. Which is NOT a follow-up test that could be done to assess whether all possible pair wise comparisons of group means were significant in a one-way ANOVA?.

10. If the null hypothesis is rejected in a one-way ANOVA with three groups, then we can infer that:

11. A one-way analysis of variance was conducted. The results of the ANOVA were significant, *F*(2, 432) = 3.75, *p* = .03. A pair wise comparison of group means was conducted. Based on this information, which pair wise comparison test is the "best" choice and most widely used in educational research?

12. A one-way ANOVA was conducted and the researcher tested the assumption of homogeneity of variances. How can the researcher test this assumption?

13. Describe the *F* ratio.

14. What would be the minimum group size for an ANOVA for large effect size were eta squared = .20, alpha = .05, *k* = 3 groups, and statistical power equals .80?

15. Eta squared is the ratio of the between sum of squares divided by the total sum of squares.

**BUY MORE MATERIALS FOR THIS COURSE:**

- 4 years ago

**EDUC 812 Quiz 3**

Purchase the answer to view it

- EDUC812Quiz3.doc