General instructions. This assignment is to be done in your lab session. Submit your assignment from the lab computer during lab time. If the assignment involves SPSS, be sure that when you open SPSS, you set it so that commands are displayed in the output: Edit -> Options, Viewer tab, check box Display commands in the log.

Our goal in this lab exercise is for you to be able to reproduce in SPSS (some of) the results presented in lecture, specifically for the analysis of Table 12.19 (p. 598) in the textbook.

Load the data. Get the 20yr-old data from Table 12.7. Get the 60yr-old data from Table 12.15. Combine the tables appropriately into a single spreadsheet in SPSS. HINT: Follow the rule, one row per subject, and explicitly code group membership. In SPSS you can first load one data set and then use Data -> Merge Files -> Add Cases to include the other data set, but be very careful to properly add a group code variable.

1. Show the resulting data table in the SPSS output: Analyze -> Reports -> Case Summaries.
   
2. Make boxplots of the six conditions. Let the X-axis be the angle factor, and let panels (in columns) be the age factor.
   
3. In a text box immediately below the boxplot, state whether there are any outliers, and briefly what considerations there are in deciding to include or exclude an outlier.
   
4. Run an ANOVA on the data. Be careful to properly define the within- and between-subject variables. Also, define three Plots: The average effect for age, the average effect for angle, and the six angle*age conditions in one plot (like Figure 12.1, p. 607).
   
5. In a text box immediately after the plot of average effect for age, type in the result from the ANOVA for the main effect of age. That is, type in "F(__,__) = __, Greenhouse-Geisser corrected p=__" using the actual (not corrected) df.
   
6. In a text box immediately after the plot of average effect for angle, type in the result from the ANOVA for the main effect of angle. That is, type in "F(__,__) = __, Greenhouse-Geisser corrected p=__" using the actual (not corrected) df.
   
7. In a text box immediately after the plot of all six conditions, type in the result from the ANOVA for the interaction of age and angle. That is, type in "F(__,__) = __, Greenhouse-Geisser corrected p=__" using the actual (not corrected) df.

What to turn in and how to turn it in. Delete everything from your SPSS output file except only those graphs and tables that are relevant to the questions above. Be sure that the graphs and tables are in exactly the order of the questions above. Be sure that you text boxes are placed exactly after each relevant table or graph. At the top of your file, be sure to add a text box with your name. Save a copy of the output file for your own records, and upload a copy to the Assignments in Oncourse.