Has there been any statistical metric devised to allow comparison on the 'objectivity' across sports?
As an example, if a sport like chess has the vast majority of player actions, as well as the outcomes of those actions, being objectively agreed upon, then it could score very high in terms of objectivity. Whereas perhaps sports like soccer or rugby union where there is often subjectively and disagreement over outcomes of passages of play would score lower on the scale.
Is there any such metric that characterises the degree to which a sport is 'objective'?