Table 6. Performance measures for comparing the performance of the considered algorithms in binary classification of the fNIRS signal quality on the validation dataset.

Method	Accuracy (%)	Sensitivity (%)	Specificity (%)	Precision (%)	F1-score (%)
SCI	65	39.13	100	100	56.25
PHOEBE	75	56.52	100	100	72.22
SQI	95	95.65	94.12	95.65	95.65