The sort of thing that wouldn’t scan

nytimes.com/2012/06/24/opinion/sunday/your-brain-on-a-magic-trick.html

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In one study, shoppers in a blind taste test of two types of jam were asked to choose the one they preferred. They were then given a second taste from the jar they picked. Unbeknown to them, the researchers swapped the flavors before the second spoonful. The containers were two-way jars, lidded at both ends and rigged with a secret compartment that held the other jam on the opposite side — a principle that’s been used to bisect countless showgirls. This seems like the sort of thing that wouldn’t scan, yet most people failed to notice that they were tasting the wrong jam, even when the two flavors were fairly dissimilar, like grapefruit and cinnamon-apple.
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I cannot understand what the word “scan” means which appears in the article above, the title of the which is The Science of Illusion.

I think the phrase “this seems like the sort of thing that” can be generally accompanied with a figurative expression. If so, can I interpret the verb “scan” as “to conform to a metrical pattern?”

Please instruct me what it means.

Thank you in advance.