Linked Scoring

I built a survey with 26 questions, a number of them I put basic scoring logic into them. I am able to export responses and the associated scores for each individual question which is perfect and I need to maintain BUT I also would like to on the back end have the survey group a number of questions together and return the max score within the questions grouped and return that as a separate score. In total I need to be able to group questions and arrive at a category score for 6 separate categories and based on the category score I need to come up with an overall score using a weighted formula for each of the categories. Is this possible and how best to accomplish?