Table 9. Accuracy, hit rates, and false alarm rates of graduate students’ responses

	S1	S2	S3	S4	S5
Accuracy	44%	51%	53%	49%	51%
Hit	33	37	30	33	40
False alarm	38	36	27	34	39
Incorrect	11	7	14	11	4
Correct	6	8	17	10	5
Hit rate (H)	0.85	0.82	0.64	0.77	0.89
False alarm rate (FA)	0.86	0.82	0.61	0.77	0.89
Hit: response–natural	stimuli–original
False alarm: response–natural	stimuli–modified
Incorrect: response–unnatural	stimuli–original
Correct: response–unnatural	stimuli–modified
H: Hits/(Hits+Incorrects)
FA: False Alarms/(False Alarms+Corrects)