Social Science Assignment
Anna03 2 days ago
 100
Assignment56.doc
 divorce1.sav
 goggles1.sav
 assign6prob1data1.sav
 assign6prob2data1.sav
Assignment56.doc
Assignment 5: ANOVA
Part 1
Open the divorce.sav data file and run the oneway ANOVA to answer the following question:
What are the effects of marital status on life satisfaction?
1. State the independent and dependent variables.
2. State the null and alternate hypotheses.
3. Run the appropriate analysis using SPSS (Hint: Use the General Linear Models and Univariate Procedure. Select Estimates of Effect Size under the Options tab).
4. What are the mean and standard deviation for each of the levels of the IV?
5. Report the appropriate F statistic, degrees of freedom, p value, and eta squared (η2).
6. What is your decision regarding the null hypothesis (i.e., did you reject or fail to reject the null)? Explain your decision (1 sentence)
7. Write up a sample results section using APA style.
Part 2
Use the goggles.sav data to run a twoway ANOVA. Consider the following example and then answer the subsequent questions:
Derived from Field (2005), an anthropologist was interested in the effects of alcohol on mate selection at nightclubs. Her rationale was that after alcohol had been consumed, subjective perception of physical attractiveness would become more inaccurate. She was also interested in whether this effect was different for men and women. She picked 48 students: 24 male and 24 female. She then took groups of eight participants to a nightclub and gave them either a nonalcoholic lager, 2 pints of strong lager, or 4 pints of strong lager. At the end of the evening she took a photograph of the person that the participant was chatting up. She then got a pool of independent judges to assess the attractiveness of the person in each photograph (out of 100).
1. State the independent variables and the dependent variable.
2. State the null and alternate hypotheses.
3. Run the appropriate analysis and include the Levene’s (Homogeneity of Variance) test and the test of BetweenSubjects Effects (Cut and Paste Levene’s Test Output Below – Explain the meaning of this test).
Tests of BetweenSubjects Effects (Include Data from Output in the Figure Provided Below)
Source 
Df 
Mean Square 
F 
Sig. 
Gender 




Alcohol





Gender*alcohol 




4. Report the mean and standard deviation for each level of the IV (Cut and Paste Output).
5. What is your decision concerning the null hypothesis (i.e., did you reject or fail to reject the null)? Explain your response.
6. Post the Estimated Marginal Means of Attractiveness of Data.
7. Using APA style, write up a sample results section.
Assignment 5: Evaluation Form
Characteristics Assessed

Excellent 
Adequate 
Insufficient 

Part 1. 
OneWay ANOVA 
5 
4 
03 
Part 2. 
TwoWay ANOVA 
10 
89 
07 





Total Points Earned: ____ / 15 Points Possible 
Assignment 6: NonParametrics
Part 1
ChiSquare Test of Association (Independence)
A school system is concerned about the low graduation rate among their high school students. The superintendent assigned a task force to research possible reasons that could explain the low graduation rate. The task force decided to conduct a preliminary literature review about current graduation rate research. The literature review signaled that among several key factors that are related to completion of high school is the development and execution of a school guidance intervention plan. The task force decided to investigate if such is the case in the high school with the highest dropout rate in their district. The following data was collected:
Valenti High School Data

Guidance Intervention Plan 

Students obtaining a high school diploma 
No 
Yes 
No 
577 
46 
Yes 
381 
492 
In order to run the chisquare test of association (aka, chisquare test of independence), open the file named: assign 6 prob 1 data.sav
· Under View > Value labels you can toggle between the variable category label (no, yes) or the dummy codes (numeric representation) for the category label (0 = no, 1 = yes)
· Make sure you review both the “Data view” and “Variable view” so you understand the variable types and other properties – and how the variables were created and entered.
· Go to Analyze > Descriptive statistics > Frequencies, and move the two variables to the “Variables” box, then click “ok”
· This gives you the frequencies and percents of each of the variables
· To run the chisquare of association test, go to Analyze > Descriptive statistics > Crosstabs, then move High School Diploma (HSD) to the “Row” box, and Guidance Intervention Plan (GIP) to the “Column” box
· Select “Statistics” then select the “Chi square” and “Phi and Cramer’s V” boxes
· Click “Continue”
· Select “Cells” then select “Observed” and “Expected” under “Counts” (“Round cell counts” is selected by default)
· Click “Continue” then “ok”
Use the output for Questions 13:
You were asked to analyze the data and present the findings in the upcoming school board meeting. Your report must include the following:
1. A short explanation about the following (cut and past the output into your Word document):
a. ChiSquare Test of Association.
b. The Case Processing Summary table .
c. Cross tabulation table .
d. Chisquare Tests table.
e. Clustered Bar Chart.
2. Write down the value of the Pearson chisquare and its associated tail probability (pvalue). Is it significant? (complete an APA style writeup)
3. In terms of the experimental hypothesis, what has this test shown?
Part 2
ChiSquare Goodness of Fit Test
Following are the cumulative number of AIDS cases reported for Neptune County through December 31, 2008, broken down by ethnicity:
Ethnicity 
Actual Number of AIDS Cases 
White 
751 
Hispanic 
225 
AfricanAmerican 
100 
Asian, Pacific Islander 
36 
Native American 
5 

Total = 1117 
Ethnicity 
Percentage of total county population 
Expected cases by population 
1 = White 
51 
570 
2 = Hispanic 
23 
257 
3 = African American 
4 
45 
4 = Asian, Pacific Islander 
21 
235 
5 = Native American 
1.0 
10 

Total = 100% 
Total = 1117 
In order to run the chisquare goodness of fit test, open the file named: assign 6 prob 2 data.sav
· Under View > Value labels you can toggle between the variable category label (White, Hispanic, African American, Asian Pacific Islander, Native American) or the dummy codes (numeric representation) for the category label (1 = White, 2 = Hispanic, 3 = African American, 4 = Asian Pacific Islander, 5 = Native American). For this test, we want to compares the observed (actual) AIDS cases to the expected cases (frequencies, based on county population).
· Go to Analyze > Nonparametric tests > Chi square
· Move the AIDS variable to the “Test variable list” box
· Using the “Expected cases by population” numbers that correspond to each ethnic group in the table above, under “Expected values” select, “Values” then add the 5 population percentages that correspond with the frequency in the sample, using “Add” for each (570 > Add, 257 > Add, 45 > Add, 235 > Add, 10 > Add)
· Select “Descriptive” > Continue under “Options”
· Click “ok”
You will use the output for Questions 15:
Determine whether the makeup of AIDS cases follows the ethnicity of the general population of Neptune County. State the following:
1. Null Hypothesis
2. Decision
3. Reason for the Decision (paste the output that includes the statistical significance into Word)
4. Does it appear that the pattern of AIDS cases in Neptune County corresponds to the distribution of ethnic groups in this county? Why or why not?
5. You are asked to report your findings along with recommendations for prioritizing interventions by ethnic group to the County Health Commission. Write a one paragraph handout summarizing the findings and your recommendations. Also include the results, in APA style.
Assignment 6: Evaluation Form
Characteristics Assessed

Excellent 
Adequate 
Insufficient 

Part 1. 
ChiSquare Test of Association 
5 
4 
03 
Part 2. 
ChiSquare Goodness of Fit Test 
10 
89 
07 





Total Points Earned: ____ / 15 Points Possible 
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