I've created a grouping question in which participants group a set of 10 media in up to 5 groups and then name these groups (I used these instructions for this step: https://community.qualtrics.com/XMcommunity/discussion/1219/how-to-allow-subjects-to-specify-their-own-group-names-in-the-pick-group-rank-question-type). I later ask the participants to reassign the media to the groups they made by creating a second grouping question with the names of the groups piped in from the previous question. Next I'd like to produce a score for them that reflects how many of the media they re-grouped in the same way. For example: the first time they group media it results in this: Group 1(a,b,c ), Group 2 (d,e) Group 3 (f); and the second time they group media it results in this: Group 1(a,b) Group 2 (c,d,e), Group 3 (f), so I'd want to return a score of 5/6 - how many media they grouped in the same way.
I'm assuming I need to assign a value of 1 to each of these media and then subtract based on the groups and then return the remainder with reference to the total number of media (the total will always be 10) but I have no idea how to do this! Any help would be gratefully received.