Hi we consistently seem to have issues reaching any confidence with tests whereby visitors may convert multiple times for the goal metric. It seems to 'throw out' the test duration calculations.
Is this a known phenomenon with using such goal metrics that i should be aware of ?
Our current approach which is laborious is exporting data via DW and then using the Adobe offline calculator (Excel doc) and calculating conversions as any 'visitor who has 1 or more instances of the given success event'. Is this the only way?