More Brits should take it.

My guess is they'd be placed mainly on the East Coast, but in a broad rather than a narrow area.

The quiz placed me with frightening accuracy in New York City, though Iive lived in a distinctly different area for decades.

And it did so without stereotypical questions like "Do you say 'dese, dem, and doze'" "Do you say 'cawfee'?" "Do you say 'boid'?" "Do you say 'erl'?"

None of which I say (precisely), but all of which are (more or less) real.

I wonder if the makers of the text took immigrant accents into account.

On the other hand, most of the questions were about vocabulary, not pronunciation.