I used SPSS to run a two-way within subjects ANOVA (IV1 and IV2). The IV1 * IV2 interaction was not significant but main effects of both IV1 and IV2 were. I would like to know if the trends followed a significant linear or quadratic pattern. Would it be right to look at the Tests of Within-Subjects Contrasts table produced automatically by SPSS? Or would I need to run other tests to look for this?
Also, may I ask how I can make sense of this table?
Thank you so much in advance!