Write three research questions that could be tested using either an independent t-test, paired t-test, Mann-Whitney U test, or the Wilcoxon matched-pairs signed-rank test.

2a. Write three research questions that could be tested using either a/an independent t-test, paired t-test, Mann-Whitney U test, or the Wilcoxon matched-pairs signed-rank test. Write the questions such that no one statistic is used to measure all three of the research questions posed.

2b. State which statistic you would use for each research question developed and provide a rationale why you selected that statistical test.

Step 2 Components

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Specify the selected question for Step 3 components:

3a. Determine the sample size you will use for this analysis using G*Power.  Provide the effect size, alpha, and power used in this calculation along with the apriori sample size calculated. 

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3b. Select the appropriate number of data sets from the random data file developed using the Select Cases function in SPSS. Save the file for this assignment.  Provide the rational for the sample size selected to prevent the possibility of creating a Type I or a Type II error.

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3c. Analyze the variables using descriptive statistics. Provide relevant print outs from SPSS and describe what each print out is telling you.

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3d. Associate the demographic and independent variables used to the dependent variable.  Provide relevant print outs from SPSS and describe what each print out is telling you. 

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3e. Determine whether there is a difference in the outcome variable along with the statistics that support it. Provide relevant print outs from SPSS and describe what each print out is telling you. 

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3f. Write your results, in APA format based on the examples provided in the Green and Salkind text, based on the test(s) used. 

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