|
|
|
||||
|
|
|||||
3. One way Analysis of Variance, Page 59 of Keppel
Example 3a. SPSS MANOVA
Example 3b. SPSS GLM (under construction)
Example 3c. SAS PROC GLM (under construction)
3. One way Analysis of Variance, Page 59 of Keppel
Page 59 of Keppel illustrates a one way Analysis of Variance. This example compares the number of errors (failures) for 4 different treatment groups who differed in their level of sleep deprivation (indicated by the variable a). The data for this experiment are shown below.
| a=1 | a=2 | a=3 | a=4 |
| 37 22 22 25 |
36 45 47 23 |
43 75 66 46 |
76 66 43 62 |
This can be analyzed using SPSS manova, SPSS glm, or SAS proc glm. All of these examples use the CHAP3 (SPSS, SAS) data file. The following examples illustrate how to perform a one way ANOVA with this data file.
Example 3a. SPSS MANOVA
MANOVA failures BY a(1,4).
The dependent variable, failures, appears directly after the manova keyword, and the independent variable, a(1,4), follows the by keyword along with the levels of the variable in parentheses. This yields a one way ANOVA.
Example 3b. SPSS GLM
GLM failures BY a.
Example 3c. SAS PROC GLM
PROC GLM DATA=chap3; CLASS a; MODEL failures = a ; MEANS a / deponly ; RUN;
Summary
Under construction.
UCLA Researchers are invited to our Statistical Consulting Services
We recommend others to our list of Other Resources for Statistical Computing Help
These pages are Copyrighted (c) by UCLA Academic Technology Services