1. © Copyright 2000, Julia Hartman 1 An Interactive Tutorial for SPSS 10.0 for Windows © by Julia Hartman Creating Scatterplots Next

2. © Copyright 2000, Julia Hartman 2 Scatterplots: Introduction A scatterplot may help you to understand how well linear regression fits your data. You may find that a quadratic equation would be more appropriate than a linear one. Next

3. © Copyright 2000, Julia Hartman 3 Scatterplots : Introduction Variables  totcum: Undergraduate GPA (Total Cumulative)  nmtot1: MCAT Total 1992-present, most recent  usmle2: USMLE Step 2 Next

4. © Copyright 2000, Julia Hartman 4 Scatterplots : Starting the Procedure In the menu, click Graphs

5. © Copyright 2000, Julia Hartman 5 Scatterplots: Starting the Procedure In the menu, click Graphs Point to Scatter…

6. © Copyright 2000, Julia Hartman 6 Scatterplots: Starting the Procedure In the menu, click Graphs Point to Scatter… …and click.

7. © Copyright 2000, Julia Hartman 7 Scatterplots: Selecting the Type of Scatterplot This tutorial demonstrates a plot of 3 continuous variables, so first click the button for 3-D.

8. © Copyright 2000, Julia Hartman 8 Scatterplots: Selecting the Type of Scatterplot This tutorial demonstrates a plot of 3 continuous variables, so first click the button for 3-D. Then click the Define button.

9. © Copyright 2000, Julia Hartman 9 Scatterplots: Selecting Variables Scroll down the variable list,

10. © Copyright 2000, Julia Hartman 10 Scatterplots: Selecting Variables Scroll down the variable list, point to the variable labeled UNDERGRAD GPA TOTAL - CUMULATIVE

11. © Copyright 2000, Julia Hartman 11 Scatterplots: Selecting Variables …and click. Scroll down the variable list, point to the variable labeled UNDERGRAD GPA TOTAL - CUMULATIVE

12. © Copyright 2000, Julia Hartman 12 Scatterplots: Selecting Variables Move totcum to the box labeled X Axis: by clicking the arrow.

13. © Copyright 2000, Julia Hartman 13 Scatterplots: Selecting Variables A few variables down the list, point to nmtot1, which is labeled MCAT TOTAL 1992- PRESENT, MOST RECENT

14. © Copyright 2000, Julia Hartman 14 Scatterplots: Selecting Variables …and click. A few variables down the list, point to nmtot1, which is labeled MCAT TOTAL 1992- PRESENT, MOST RECENT

15. © Copyright 2000, Julia Hartman 15 Scatterplots: Selecting Variables Move nmtot1 to the box labeled Z Axis: by clicking the arrow.

16. © Copyright 2000, Julia Hartman 16 Scatterplots: Selecting Variables Scroll further down the list and point to the variable usmle2, which is labeled USMLE STEP 2,

17. © Copyright 2000, Julia Hartman 17 Scatterplots: Selecting Variables Scroll further down the list and point to the variable usmle2, which is labeled USMLE STEP 2 TOTAL,

18. © Copyright 2000, Julia Hartman 18 Scatterplots: Selecting Variables …and click. Scroll further down the list and point to the variable usmle2, which is labeled USMLE STEP 2 TOTAL,

19. © Copyright 2000, Julia Hartman 19 Scatterplots: Selecting Variables Move usmle2 to the box labeled Y Axis: by clicking the arrow.

20. © Copyright 2000, Julia Hartman 20 Scatterplots: Selecting Variables Click the OK button to produce the scatterplot.