Instruction: You need to go back to the literature you cite in chapter 2 both technical and substantive – and tie what you found in chapter 4 and tie what you found to it.
Did the approaches work as you would have expected? How did the modeling efficacy match with what the literature would suggest? What did the overall modeling suggest relative to the substantive literature and what we would expect to accurately predict tested outcomes? You need to literally include citations back to the literature in 2 in this discussion.