# Decide whether to reject or retain the null hypothesis based on main effects and/or post-hoc statistical tests.

To prepare for this Application:

• Review Lessons 25 and 27 in the course text Using SPSS for Windows and Macintosh: Analyzing and Understanding Data.
• Review the video program for this week, located in the Learning Resources.
• Read the ANOVA/MANOVA section of the StatSoft Electronic Textbook at http://www.statsoft.com/textbook/.
• Access the gss04student_corrected dataset in the Course Information area of the classroom to use for this Application

The assignment:

• Craft up to a one page double-spaced write up of the statistical results (include any additional pages needed for any APA tables or graphs and the SPSS syntax and output) in which you do the following:
• State the statistical assumptions of this test.
• Select an independent variable with three or more levels and a dependent variable.
• Develop the null hypothesis and the alternative hypothesis for main effects.
• Using SPSS, calculate an ANOVA. Include a post hoc test.
• Report on the p value and the confidence interval.
• Interpret the confidence interval.
• Decide whether to reject or retain the null hypothesis based on main effects and/or post-hoc statistical tests.
• Generate syntax and output files in SPSS. You will need to copy and paste these into your Application document.
• Based on your SPSS analysis, report the results using correct APA format. Include results for post hoc tests where appropriate. Your report should include the following:
• SPSS syntax and output files
• ANOVA table

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