“To make the Index, we used ten data sources which measure the following, in priority order

1.Your MP’s availability to their constituents. This looks at how your MP is available online (email and social media), offline (holding “surgeries” in your local area and a caseworker), and whether your MP is distracted by a second (or third) job.

2.Your MP’s participation in Parliament. This looks at your MP’s participation record for voting in Parliament, so that your constituency is counted when new laws are passed, and how often your MP raises issues from your constituency in Parliament

3.How an MP listens to the public. An MP’s top priority is their constituency, but they also have a responsibility to the wider general public to bring political attention to mass public campaigns and priority issues by discussing them in Parliament.

All mentions of “MPs” refer to Members of Parliament for the 2017-2019 period, most of whom are now candidates seeking re-election in December 2019 at the General Election.”

https://www.change.org/l/uk/the-people-power-index-how-did-your-mp-score?