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The said survey was carried out by the University Institute of Public Opinion (UCA – Universidad Centroamericana), during September, based upon 1.269 valid interviews (confidence interval 95%; error: 2,75%).
The interviews were held at the homes of those interviewed, and according to the last chart on the report, seems well balanced in terms of age, geography, gender and educational level distribution.
The questions strictly on bitcoin are:
1- Bitcoin qualification given by the interviewed:
4,61 / 10.
2- Citizen’s approval rate for bitcoin:
38,7% approves it; 61,3% does not
3- Percentage of the population that have used bitcoin to buy or pay for something:
75,6% have not used it; 24,4% have use it.
4- Should the government keep on spending money on bitcoin?
77,1% no; 14,9% yes; 8% doesn’t know/answer.
5- Has bitcoin been a success or a failure?
16,5% success; 65,5% failure; 18% doesn’t know/answer.
6- Has your family’s economic situation improved, worsened or stayed the same with the approval of bitcoin (as legal tender)?
3% Improved; 77,2% stayed the same; 17,8% worsened; 2% doesn’t know/answer.
7- Citizen rating for Nayib Bukele’s government’s spending public money to purchase bitcoin:
2% Very much in agreeance; 19,6% In agreeance; 13,9% indecisive; 48,8% in disagreeance; 15,8% very in disagreeance.
What would be interesting to see is the correlation between those that have used bitcoin and the answers, since it’s likely that they are positively correlated (my speculation).
In addition, besides asking for the Boolean factor of whether they’ve used bitcoin to buy/pay, it would be interesting to have some insights that separate those made only using the 30$ BTC airdrop for downloading the wallet, the frequency and recency, as well as some simple wallet adoption questions (i.e. Chivo and/or other wallets) – for example.
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That was in May 2022 (see the date on the article you link).