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, 90)= 1.87, .07, , what can the educational researcher say about the null hypothesis? 3. Based on these results, 90)= 3.66, .04, ? 25, what can the educational researcher say about the null hypothesis? 4. It the absolute value of a statistic is greater than critical then you should: 5. Suppose you read the following in a journal. The group means did not differ significantly, (30.1) = 1.68, > .05, two tailed. You notice that the nĀs 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, = 96.62, = 10.34; for men, = 89.33, = 11.61, (328) = -5.48, < .001, two tailed. What do these results mean? 8. Based on these results, (92) = -.67, = .41, = -.10.
The math scores of males ( = 31.54, = 5.16, = 29) on and females were compared ( = 32.46, = 4.96, = 65). What can be concluded based on these results? 9. We reject 0 for the independent samples test if the obtained values of 10.If all other values are held constant, what happens to the value of when sample size increases: 11.A researcher reports that the ?2 effect size for her study is very large (?2 = .64); but the 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 test: 14.A histogram is used for what purpose when conducting an independent samples test?