barbos
Contributor
I read it, it says "corruption perception index"I am not aware of any change of their methods, but you can't spit in Italy without hitting mafia member.What am I wrong about? The source you linked states that early CPIs used public perception polling previously but now they base the score on NGO surveys (which are not public perception as such) as well as analyst assessments. The Validity section, that is the specific anchor in your link, states that the scores are fit for purpose:
"very strong significant correlation" between the Corruption Perceptions Index and two other proxies for corruption
But again - even if they were merely public perception polling, and they aren't perfect in some Platonic sense you've still failed to provide a better assessment. In fact you've offered nothing at all except your own feelings. To quote you from the other thread:
And another thing - Silvio Berlusconi can give Trump a run for his money and italians were keeping electing him as their PM.
Somehow, I think, your unwillingness to read the source you cited isn't as formidable an argument as you think it is.
And here is my perception for you - Italy is way more corrupted than Russia.