SPSS exercise

One-Way Analysis of Variance with SPSS

As you work through this SPSS exercise, consider the application of the one-way ANOVA test to your research topic. Is it an appropriate test for your research?

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
• REY THIS IS APP 9. REMEMBER TO SAVE APP 1,2,3,4,5,6,7,8…. BECAUSE ALL OF THEM ARE GOING TO COME TOGETHER AT THE END.
• HERE IS SOME ADDITIONAL INFORMATION IF NEEDED.
• Lessons 25 and 27 explain how to use SPSS to calculate the analysis of variance (ANOVA) and the analysis of covariance (ANCOVA). These lessons will be used in this week’s Application.
• Web Site: StatSoft Electronic Textbook: ANOVA/MANOVAhttp://www.statsoft.com/Textbook/ANOVA-MANOVA

The StatSoft Electronic Textbook provides good introductory information on a wide range of statistics topics. For this week, click on the ANOVA/MANOVA link in the far right navigation bar. This resource will be used in the Application.

Data Sets and SPSS Files

• Select one of the data sets from the GSS data disk that came with the course text Research Methods in the Social Sciences. You will use this for this week’s Application.
• Sample Data files to accompany the course text Using SPSS for Windows and Macintosh: Analyzing and understanding datahttp://www.pearsonhighered.com/greensalkindSPSS/
• Lesson 25 Data File 1
• Lesson 27 Data File 1These are the files you need to complete the lesson activities. These activities are encouraged but not required for the Application.
• Media:
• “Analysis of Variance (ANOVA)” featuring Jennifer Ann Morrow (23:42)In this program, Dr. Jennifer Ann Morrow defines analysis of variance (ANOVA) and its associated formulas. She discusses the research contexts salient to ANOVA and provides example research questions that the ANOVA statistic can address. This video is used in the Application. To view this video program, use the media player located at the top of this page.
• Software: SPSS

Research Toolkit

• Course Text: Publication Manual of the American Psychological Association
• Chapter 3, “Writing Clearly and Concisely”
• Chapter 4, “The Mechanics of Style”
• Chapter 6, “Crediting Sources”
• Chapter 7, “Reference Examples”

Statistics and SPSS

• Web Site: SPSS Student Resource Centerhttp://www-01.ibm.com/software/analytics/spss/academic/solutions/students.html

The student section of the SPSS Academic Resource Center is your one-stop shop for all your statistics and data-mining needs, including tutorials, reading lists, and training courses.

• Web Site: SPSS Technical Supporthttp://www.spss.ie/support/index.html

The SPSS student support site provides a knowledge base and assistance from SPSS Technical Support staff.

• Web Site: Web Center for Social Research Methodshttp://www.socialresearchmethods.net

This Web site is for people involved in applied social research and evaluation. You’ll find lots of resources and links to other locations on the Web that deal in applied social research methods.

• Web Site: Choosing the Correct Statistical Test in SAS, Stata and SPSShttp://www.ats.ucla.edu/stat/mult_pkg/whatstat/default.htm

UCLA’s Academic Technology Services statistics table shows general guidelines for choosing a statistical analysis, and links showing how to do such tests using SAS, Stata, and SPSS.

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