Table 2.

Recognition memory task performance

		Young-Old Adults		Old-Old Adults
Accuracy (Proportion)		Easy items	Hard items	Easy items	Hard items
Old items	hits	93.0 (6.1)	86.5 (12.5)	88.9 (11.2)	76.4 (15.4)
	misses	5.0 (4.6)	10.4 (8.8)	9.4 (10.3)	19.2 (13.6)
	unsure	1.9 (3.2)	3.1 (4.9)	2.9 (5.8)	4.3 (5.8)
New items	false alarms	11.6 (6.9)		14.6 (8.6)
	correct rejections	89.1 (7.0)		86.1 (8.8)
	unsure	3.5 (4.1)		4.6 (5.9)
Response Latencies (ms)
Old items	hits	921 (166)	986 (186)	1062 (215)	1110 (168)
	misses	1059 (451)	1170 (256)	1264 (297)	1309 (224)
	unsure	1314 (330)	1532 (200)	1733 (328)	1588 (384)
New items	false alarms	1162 (299)		1150 (256)
	correct rejections	1029 (200)		1159 (211)
	unsure	1640 (254)		1674 (257)

Notes: Mean scores are shown with standard deviations in parentheses.