I need help with the following please: SPSS provides multivariate tests for repeated measures designs. This approach is useful when the sphericity assumption is violated. However, consider the following: a 3 x 3 x 3 design (all within-subject factors) with 10 subjects => 10 rows and 27 columns
If i remember correctly, in a MANOVA, the following condition must be satisfies: N - M > K, with N = number of subjects; M = number of between subject vars (not applicable); K = number op dependent vars. Hence, one shouldn't be able to carry out a MANOVA with 3 x 3 x 3 = 27 dependent vars with just 10 subjects (rows). But: SPSS does it anyway. Can anyone explain this? Are results given by SPSS not reliable? Or did I make a mistake? Tanx alot! wouter . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
