Table 4.

Baseline Cognitive Performance for Normative Groups and Healthy Test Group

Domain	Normative groups		Test group
	Conventional	Robust	HT
	M (SD)	M (SD)	M (SD)
Tests
Working Memory
Digits Forward	7.0 (1.2)	7.2 (1.1)	7.1 (1.2)
Digits Backward	5.5 (1.4)	5.7 (1.3)	5.6 (1.4)
Immediate Memory
Paragraph Recall	7.2 (2.6)	7.5 (2.5)	7.9 (2.7)
Verbal Paired Associates	5.1 (2.5)	5.2 (2.3)	5.1 (2.5)
Visual Paired Associates	6.3 (2.6)	6.2 (2.4)	6.1 (2.3)
Delayed Memory
Paragraph Recall	8.8 (3.4)	9.6 (2.8)	9.4 (2.8)
Verbal Paired Associates	5.6 (2.8)	5.8 (2.4)	5.5 (2.5)
Word List Recall	8.7 (1.7)	9.0 (1.3)	8.6 (1.7)
Attention-Language
Digit Symbol
Substitution	56 (12)	58 (11)	57 (11)
Cancellation Test	75 (14)	76 (13)	76 (13)
Object Naming Test	55 (6)	56 (4)	55 (4)

Note. HT = healthy test group with two evaluations.