You can ask that of all pieces of research though, but you leavers don't like experts, or facts, or statistics.
Ahh yes, like the fact that a majority of voters voted to leave the EU, and the experts & statistics which apparently mean this = a non-democratic vote (nothing to do with the views of the person(s) propagating such tosh?!
)
you see statistics when taken out of context can be made to say many things which are really not accurate...
so with this survey - apparently there is a c. 70% correlation between voting to leave and supporting the death penalty...
really - amazing to have such statistical accuracy on a survey taken before the referendum vote took place!
actually all that can be said is that there is a c. 70% correlation between those saying they support the death penalty and those saying they will vote leave...
but as we know this is inaccurate because many polls prior to the referendum showed inaccuracies against the actual vote... so until you have a poll / survey which asks for opinion on the death penalty and the way the person actually voted, you have to factor in a bias element for the difference between how people say they will vote, and how they actually vote...
this is why polls are so inaccurate - it is why so many within the city were caught out having financed large scale polls of people post-voting in order to understand the trend - and is why so many people went to bed believing that remain had won, when the opposite was true...
because, people don't give honest answers to questions like these - the accuracy of their answer is based on a number of things - amongst which will be:
- their perspective on how significant the question / answer is within the survey
- their perspective on how much the question / answer matters to the person / system taking the survey
- any fear or concern they may have about how their answer is seen by others
- any concerns over confidentiality of the data
- etc.
so someone answering a poll may do so very differently from a confidential vote in a polling booth - which is why we have the inaccuracies shown in the referendum polls - with emotions running high, is it any surprise that people might answer with a 'predicted vote' to suit the questioner, even though they have a different intention when voting?
so, you can not claim statistical accuracy on this type of poll - if those being questioned believed that the question on the death penalty was insignificant within the poll they may well have answered differently, or even flippantly not thinking it mattered, as for their opinion on the referendum - ahead of the voting day, how do you factor in the people who changed their mind / were uncertain / were not prepared to share that info / etc.?
Sorry, these types of analysis really do need to be more rigorous to be believed... it is as likely that there is a correlation with those who do / don't dye their hair... That is not to say that there is no correlation - statistically, there is likely to be one, but probably weaker than is being claimed, we have no way of knowing...