Adaptive N-back: Scoring formula seems taken from normal n-back and therefore unreliable?


Adaptive N-back: Scoring formula seems taken from normal n-back and...
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aquinox
aquinox
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Hi,

I have used the N-back for a while, assuming that scoring correction is taking place for getting in higher levels of N, because obviously they are harder. If someone enters a higher level of N but scores not so good on that N level, he could end up scoring lower than someone scoring quite well in a lower N level.

Lets say there are
30 target trials in total, with each time 0 FAs, someone scores
Person A : N=2: 9/10 hitsN=3: 8/10 + 7/10= 15/20 hits (less than 90% correct, so no N=4)Final score will be 24
 Person B:
N=2: 9/10 hitsN=3: 9/10 hits (pass to N=4)N=4: 4/10 hitsHis final score is 22. While person B reached N=4, his final score will still be worse.

Or am i missing something?

Thanks!

GO

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