I am pleased that the EV Tribune chose to make the "illiteracy story" the headline, if only to expose this study as a "Bridge to Nowhere."
Based on the article I read, (I am literate!), I can suppose that they didn't interview individuals, but only evaluated information that is available from public resources.
I read that one important criterium was educational attainment. What does this mean? Must you have a liberal arts degree to be considered literate? Considering the cities that are highest on the list, that requirement may very well have been an important factor.
Internet resources are suggested as a source of data. It would take forever-and then some-to filter out pertinent trends from that morass. How long did they take to develop this study? Who provided the funds? If it was the taxpayer, I want my money back!
Speaking of which, based on the list of cities, literacy could also correlate to the median incomes of those locations.
But despite all my negative charges, I was inspired by this article to create my own "evaluation."
I found that of all the cities of the world, Mesa is the least interested in sex. This is based on the lack of the
following: red-light districts, topless bars, sex boutiques, and call girls on the streets. Never mind all the families with children, or any other positive aspect of the subject, my study is valid - just as valid as the literacy study.