Researchers have sought to examine the effect of various types of music on agita

Question

Researchers have sought to examine the effect of various types of music on agitation levels in patients who are in the early and middle stages of Alzheimer's disease. Patients were selected to participate in the study based on their stage of Alzheimer's disease. Three forms of music were tested: Pop, Classic, and Jazz. While listening to music, agitation levels were recorded for the patients with a high score indicating a higher level of agitation. Scores are recorded below. Group Jazz Classic Pop 29 26 30 24 26 15 18 20 13 19 9 12 Early Stage Alzheimer's 2210 21 24 18 20 9 14 18 Middle Stage Alzheimer's 25 11 20 18 20 13 18. How many treatments are in this study? a. 30 b. 3 c. 2 d. 1 e.6 19. What type analysis should be used to evaluate this data set? a. Two-factor ANOVA d. One-way ANOVA b. One Sample t Test e. Chi-square test of homogeneity c. Paired t Test 20. Match the pre-test with its correct corresponding p-value and conclusion. a. Levene's test, p-value 0.824, must transform data. b. Bartlett's test, p-value 0.029, must transform data. c. Levene's test, p-value 0.975, can proceed with analysis. d. Bartlett's test, p-value 0.009, can proceed with analysis. e. A pretest is not necessary for this analysis

Explanation / Answer

18.

degree of freedom between the variables df = k-1, k is different variables three types of music, therefore k=2+1=3

19.

Hypothesis: Listening to the type of music has an effect on the agitation levels in early and middle stages alzheimer patients.For ANOVA, the null hypothesis will be that listening to the type of music has no effect on the given groups of patients.Since its a One way ANOVA

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