Educ 812 quiz 2 Education homework help

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Educ 812 quiz 2 Education homework help

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1. What would be the minimum sample size for an independent sample t-test for medium effect size were eta squared = .03, alpha = .05, and statistical power equals .80?

2. Based on these results, *t(*90)= 1.87,* p=* .07,* n2 = .13*, what can the educational researcher say about the null hypothesis?

3. Based on these results, *t(*90)= 3.66,* p=* .04, η*2 = .*25, what can the educational researcher say about the null hypothesis?

4. It the absolute value of a *t* statistic is greater than *t* critical then you should:

5. Suppose you read the following in a journal. The group means did not differ significantly, *t*(30.1) = 1.68, *p* > .05, two tailed. You notice that the n’s in the groups were Grp1 (n = 40) and Grp2 (n = 55). What degrees of freedom would you normally expect?

6. If the Levene test is statistically significant,

7. A test of Emotional Intelligence (EI) was given to 241 women and 89 men. The results were as follows: for women, *M* = 96.62, *SD* = 10.34; for men, *M* = 89.33, *SD* = 11.61, *t*(328) = -5.48, *p* < .001, two tailed. What do these results mean?

8. Based on these results, *t *(92) = -.67, *p *= .41, *d *= -.10. The math scores of males (*M* = 31.54, *SD* = 5.16, *n *= 29) on and females were compared (*M *= 32.46, *SD *= 4.96, *n *= 65). What can be concluded based on these results?

9. We reject *H*0 for the independent samples *t *test if the obtained values of *t*

10.If all other values are held constant, what happens to the value of *t* when sample size increases:

11.A researcher reports that the η2 effect size for her study is very large (η2 = .64); but the *t* test that she reports is quite small, and not statistically significant. What inference can you make about this situation?

12.A researcher plans to do a study to see whether people who eat an all carbohydrate meal have different scores on a mood scale than people who eat an all protein meal. Thus, the manipulated independent variable is the type of meal (1 = carbohydrate, 2 = protein). What analysis would be the best choice to analyze the data?

13.If variances are unequal, which would be an alternate non-parametric test for the independent samples *t *test:

14.A histogram is used for what purpose when conducting an independent samples* t* test?

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EDUC 812 Final Exam

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