Pre-referendum polls are often treated cautiously by politicians who remember the results of surveys taken in early 1979 and summer 1997.
But regardless of their accuracy in predicting results they can give an indication of public awareness of political systems.
The latest poll for the BBC suggests that only 39 per cent know that the Welsh Assembly Government is run by a Plaid Cymru/Labour coalition.
They really should watch more BBC Wales news output, although this does remind us that voters do occasionally access news and information sourced from beyond Wales.
Doctors testing for sanity have occasionally asked patients to name political leaders. If this poll is accurate, let's hope medics west of Offa's Dyke wait before opting for a devolved version.