Signal detection theory – what helps preventing misdiagnoses and false positives in general can’t be bad for diagnosing Amusia either, one would think. Our very own Molly Henry and her former supervisor Devin McAuley now demonstrate in a just-accepted paper
Failure to apply signal detection theory to the Montreal Battery of Evaluation of Amusia may misdiagnose amusia
in Music Perception that this is indeed the case:
They show that analyses based on confidence ratings and ROC-curves outperforms simple percentage correct in diagnosing Amusia.
Here is the abstract, and watch out for the full paper to appear soon:
This article considers a signal detection theory (SDT) approach to evaluation of performance on the Montreal Battery of Evaluation of Amusia (MBEA).