This was my first thought as well. Especially since most standardized tests do not include "trick questions" of these sorts (or if they do, they are often painf

This was my first thought as well. Especially since most standardized tests do not include "trick questions" of these sorts (or if they do, they are often painfully obvious), the more "intelligent" are just answering questions quickly thinking they are all straightforward. The test itself aside, I feel as if often in real life people correlate speed with intelligence, and the "smart" people that we know are the ones that are able to come up with (usually) correct answers quickly. Therefore it makes sense that these smart people would have a lot of heuristics that allow them to do so. To be clear though, the causation here is more complex than what is implied in the article. People who have heuristic strategies are characterized as smart, as opposed to the other way around.