Hi,
I recently submitted a manuscript where I used a "random effects flexible-factorial design" with one within-subject and one between-subject factor (2X2) in SPM8.
One reviewer criticized the approach (see below) and I'd like to know if there is some relevant literature I could use to explain the model better.
Many thanks,
Geneviève Allaire-D.
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The use of "random effects flexible-factorial" is not given a published citation so one looks for supporting literature. The SPM8 manual only describes this modeling nonstatistically, in section 10.2.8. Henson and Penny's Technical Report (2003? 2005?) (https://www.fil.ion.ucl.ac.uk/~wpenny/publications/rik_anova.pdf) does not make any note of the flexible-factorial concept, and where it is available on the web it seems not to be elucidated in detail.
No other software product appears to use the phrase, and it is not in common parlance. Thus, it will have to be explained to the readership in much finer detail to be interpretable here.
Moreover, a recent critique by Chen et al (Neuroimage 2014, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4121851/) shows that SPM is hindered by serious limitations and can readily overestimate significance.
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