Next steps after DSD?
I completed a 6 factor DSD recently, & found only 4 factors to be significant. Below is what the prediction profiler looks like after reducing my model, showing a quadratic effect for 1 of the factors. My model has 4 main effects, 2 two-factor interactions, & 1 quadratic effect. My question is, what are the next steps to a DSD? Should I go straight to an RSM design? So fit 2^4 factorial w/ center...