It appears questions over participation aren't restricted to Westminster. The Irish News has today published vote participation figures for our local MLAs. They are:
Average Voting Record by Party (Assembly Term Since 2007)
Four of the top five vote attendees are in the DUP and the fifth is Patsy McGlone of the SDLP. Voting isn't the only measure by any means but it can be part of the package. Committee participation might be something worth examining as well.