Dat Scoring Format???

[azdds2008]

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Hi, I am a little confused on the science section scores. Does anyone know if the format has changed? I used the format that they have from there website (See chart on page 3 or so):
http://www.ada.org/prof/ed/testing/dat/dat_estimate_score.pdf

Now here is my question. I know the science section is out of 100. I got a 22 on bio, 17 on gen chem, and 20 on o-chem. According to this scale on their website, the most I could have missed is 3 for bio, 10 for gen chem, and 5 for o chem. That leaves me at -18 total wrong out of 100. So again, according to their scale, that should have given me a 20 T.S., yet I received a 19. Can anyone help?

Also, I've heard of people getting 23's in bio which isn't even possible according to the scale. Thank-you for your help..

 

[Hysteria24]

I believe that chart is just an estimation. It could be highly outdated as well.

 

[NoFear66]

Yea I don't think they follow that chart religiously when scoring the tests. I think it is just a good approximation of what you can expect your score to be, like a ballpark figure.