We have conducted an ANOVA examining differences between multiple ethnic groups on their levels of depression. Our p-value for our t-test was p=0.02. Which of the following is the correct interpretation of our results? We cannot tell if there is a significant difference based on the information given. There are no significant differences between ethnic groups on depression. There are significant differences between ethnic groups on depression. None of the above
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02, which is less than the significance level of 0.05. Show more…
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Which type of ANOVA would you use for each of the studies below? - One-way between subjects (independent groups) - One-way within subjects (repeated measures) - Two-way between subjects a. Measure the self-esteem of the same group of college students at the beginning, middle, and end of their freshman year. b. Compare math skills for three different professional groups: physicians, attorneys, and psychologists. c. Measure Body Mass Index (BMI) for persons who take Supplement X vs. a placebo and who either exercise regularly or don't. So there are four groups: 1) Exercise/Take Supplement X, 2) Don't Exercise/Take Supplement X, 3) Exercise/Take Placebo, 4) Don't Exercise/Take Placebo. d. Look at satisfaction with mental health services based on the client's ethnicity (White, Black, Hispanic, Asian, or Other) and how they were greeted on their initial visit (receptionist smiles or does not smile).
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Use the following ANOVA summary table to answer the following two questions: Source df SS MS F p Gender 1 240.25 240.250 29.94 .000 Ethnicity 4 1514.94 378.730 47.19 .000 Gender x Ethnicity 4 190.30 47.575 5.93 .002 Error 90 722.30 8.026 Total 99 2667.79 (Note: dftotal=N-1; dfgender=a-1; dfethnicity=b-1; dfgender*ethnicity=(a-1)*(b-1); dferror=N-a*b) 24. This ANOVA table is the result of the test for a) one-way ANOVA b) two-way ANOVA c) three-way ANOVA d) all of the above 25. The summary table suggests which of the following conclusions? a) a significant main effect of gender b) a significant main effect of ethnicity c) a significant interaction effect of gender x ethnicity d) all of the above
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