![]() Using the contrast command in a two-way ANOVA To obtain the t-value, you will have to divide the contrast estimate by the Each contrast must be separated by a comma. Note that you can enter multiple contrasts inĪ single subcommand, as shown below. This contrast is also statistically significant (F(1, 28) = 95.724, p = This contrast is also statistically significant (F(1, 28) = 110.634, p = This contrast is statistically significant Now, let’s devise some contrasts that we can test:Ģ) the average of groups 1 and 2 versus the average of groups 3 and 4ģ) the average of groups 1, 2, and 3 versus group 4 glm y by b It is quite clear that there is a significant overall F for the independent variable b Using the contrast command in a one-way ANOVA glm y by b. The variable a is an independent variable with two levels, while b is an independent variable with four levels. The variable y is the dependent variable. These data are from a 2×4 factorial design but the same data can also be used for one-way ANOVA examples. Let’s use an example dataset, crf24.sav, adapted from Kirk (1968, First Edition). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |