I don't know what to think about the test, I took it twice changed one one or two answers as sometimes somethings just sound one way or the other to me. I for sure don't in any way speak like a Philadelphian nor a southerner. I checked the following site to check the phenetics and because through life, I had a great speaking voice and was often complimented on my enuciations. As an adult when I lived up north, people would always ask where I was from because they couldn't place my accent, having lived in the south on and off for some 20 years now, people here can't place my accent, but for the most part they are sure I'm not from the south. The second test placed me as being from the south. So :dunno: I do admit to playing on a more NY accent in the past few years just to annoy my Floridian neighbors.
I listened to the pronunciations on,
http://www.forvo.com/ and over there is what I agreed how the words should be pronounced all except caught evedently has a different sound when Americans say it, on this site,
http://www.howjsay.com/index.php?word=caught&submit=Submit which it seems should be pronounced cot on one site so I take it the site used for this test has it's own separate way of pronouncing words. The way one site pronounced some words for Americans, it sounds more like how a bostonian would pronounce it but oh well, I'll continue to pronounce it as if it sounds similar to aut in hautie tautie.

Seems once again, I come up undetectable or just more confuse.