Objective of my study is to find out optimized choice cards to the commuter under different scenarios. I have identified 3 alternatives (option A, B, C) with 4 attributes each namely, CC, TTS, DTD and PLR.
For option A : (arranged from worst to best)
CC - 3 levels (70,60,50)
TTS - 3 levels (5,10,15)
DTD1 - 2 levels (20,10)
PLR1 - 3 levels (10,20,30)
For option B : (arranged from worst to best)
DTD2 - 4 levels (-20,-10,10,20)
PLR2 - 3 levels (10,20,30)
For option C : (arranged from worst to best)
DTD3 - 4 levels (-20,-10,10,20)
PLR3 - 3 levels (-30,-20,-10)
As from the above identified factors and levels - My combinations turns out to be - 3*3*2*3*4*3*4*3 = 7776. Which is very high for creating profiles and I need to d optimize the choice cards.
I wanted to do DOE with these factors and levels in order to create significant choice cards. But I'm unable to understand which design method I should opt for. Kindly help me out.