Week 5 Learning Activity #1 Non-Parametric Statistics Assignment

1. What is the difference between parametric techniques and non-parametric techniques? What factors would you consider when choosing whether to use a parametric or a non-parametric technique?
2. For each of the following parametric techniques indicate the non-parametric alternative (if one exists).

1. one-way between-groups ANOVA
2. Pearson’s product-moment correlation
3. independent samples t-test
4. multivariate analysis of variance
5. one-way repeated measures ANOVA
6. paired samples t-test
7. partial correlation

3. Choose and perform the appropriate non-parametric test to address each of the following research questions.

1. Using the survey.sav data file find out whether smokers are significantly more stressed than non-smokers. The variables you will need are smoke and total perceived stress (tpstress).
2. Using the survey.sav data file compare the self-esteem scores across the three different age groups (18-29yrs, 30-44yrs, 45+yrs). The variables you will need are tslfest and agegp3.
3. Using the survey.sav data file explore the relationship between optimism and negative affect. The variables you will need are toptim and tnegaff.

4. Choose and perform the appropriate non-parametric test to address each of the following research questions.

1. Using the survey.sav data file explore the association between education level and smoking. The variables you will need are educ2 and smoke. Check the codebook and the questionnaire in the appendix of the SPSS Survival Manual for details on these two variables.
2. Using the experim.sav data file compare the depression scores at time 1 and the depression scores at time 2. Did the intervention result in a significant change in depression scores? The variables you will need are depress1 and depress2.
3. Using the experim.sav data file compare the depression scores for the three time periods involved in the study (before the intervention, after the intervention and at the three-month follow up). The variables you will need are depress1, depress2 and depress3.

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Solution: The downloadable solution consists of 7 pages, 774 words.
Deliverable: Word Document