I have run an experiment on consonance-dissonance evaluation of musical intervals on 40 individuals using all the possible intervals from 3 registers (plus their inversions), and I want to apply a multidimensional scale analysis.
My problem is that the stress plot indicates the following:
I guess it would not be desirable to limit my analysis to 2 or 3 dimensions since the stress is high at these points, but I am not sure if adding dimensions helps either. Is there an optimal number of dimensions that I should consider, or should I follow the stress curve wherever it may take me? Thanks.