Currently, Covidence does not retain information on a reference or study's voting history once it moves from one task to the next.

If you'd like to have a record of all of your reviewer conflicts before they are resolved, it is best to capture this information from the Resolve Conflicts page before the final vote.

We know lots of users would like to be able to export data to calculate Kappa statistics; this is something we're strongly considering so keep an eye out in the new features!