Top Score Scores

[Mark2K8]

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I just bought and took a Top Score exam. However, once the results were posted, it didn't seem to correspond to the OAT Sample Test Raw Conversion (http://www.ada.org/~/media/OAT/Files/oat_sample_test.ashx).

I got 32/40 in bio, which to TS: 360, but on the ADA website it is a 370.
Reading 32/40, and although ADA only has a raw score for 1 test, TS scored that as a 300...
In general everything else was also 10-20 points lower than the ADA conversion chart.

Which one is more accurate/why the difference?
Also, for anyone who has taken Top Score physics section, how does it compare to the real OAT physics?

Thanks

 

[Salmon]

I found this discrepancy long ago when I took the test between Kaplan and the ADA practice test. There is no way to tell which one is more accurate since they don't release that kind of information.

My actual score on the OAT was a lot closer to the scores I calculated using the ADA's conversion chart. I wouldn't worry too much about it though.

 

[Mark2K8]

I see. I'm aware the ADA practice test has a general consensus of being easier than the real OAT, but it was a buzzkill seeing the raw score conversions from top score far off the ADA conversions. Ah well...

 

[Salmon]

I'm not sure, but I think that ADA test is old and they've had to adjust the standard score a number of times over the years to account for the average raw score trending upwards. The standard score is supposed to correlate with a bell curve like this (this is just an example):

 

[nalissocit]

good,My actual score on the OAT was a lot closer to the scores I calculated using the ADA's conversion chart. I wouldn't worry too much about it though.

 

[Mark2K8]

good,My actual score on the OAT was a lot closer to the scores I calculated using the ADA's conversion chart. I wouldn't worry too much about it though.

THat's good to know! How did you think the Physics compared to the ADA test (or top score's)? I'm having trouble on the top score ones, but ADA's wasn't too bad.