Closed 0todd0000 closed 4 years ago
Q1.
Q2. If you are trying to run two-way RM-ANOVA (i.e., spm1d.stats.anova2rm) you will receive this error because there are different participants in A1 and A2. anova2rm expects the same participants to be in A1 and A2. If the participants are indeed different, try spm1d.stats.anova2onerm instead. If that does not solve the problem, please clarify how many observations are in each group combination (i.e., A1B1, A1B2, A2B1, A2B2).
Hello. Factor A comes from two different samples (A1 and A2), each of these samples were measured in two conditions B (B1 and B2), where: A1B1=14, A1B2 =14, A2B1=5, and A2B2=5, i.e. We have 14 subjects (A1) performing both conditions (B1 and B2), and 5 subjects (A2) performing the same both conditions (B1 and B2).
Q1.1 Due to non-balanced, we arbitrary selected 5 subjects from each sample. Would this then be a two-way ANOVA with repeated measures (anova2rm) or anova2onerm?
Thank you
In this case anova2onerm is more appropriate than anova2rm.
For anova2rm, both factors must be RM. For anova2onerm, just one factor is RM.
(Forwarded and paraphrased from an email question)