Table 2.

Memory and Executive Performance of the Adherent and Non-Adherent Study Groups

Cognitive Variable	Adherent (n = 103)	Non-Adherent (n = 99)	p	Cohen's d
California Verbal Learning Test-II
Total trials 1-5 (of 80)	48.9 (11.0)	45.8 (10.5)	.042	.29
Short-delay free recall (of 16)	10.1 (3.7)	9.2 (3.5)	.059	.25
Long-delay free recall (of 16)	10.3 (4.0)	9.3 (3.7)	.054	.26
Retention (%)	−17.5 (23.7)	−20.4 (22.0)	.372	.13
Recognition (hits/false positives)	3.0(0.9)	2.8(0.8)	.316	.23
Wechsler Memory Scale-III
Logical Memory I (of 75)	42.1 (11.2)	36.8 (12.2)	.002	.45
Logical Memory II (of 50)	26 (9.2)	22.7 (8.3)	.008	.38
Retention (%)	83.5 (16.9)	80.0 (18.5)	.166	.20
Recognition (of 30)	25.3 (3.1)	25.1 (3.0)	.657	.07
Executive Function	.06 (.71)	−.06 (.79)	.271	.16

Note. CVLT-II and WMS-III values reflect raw scores. The executive function variable is a composite score derived from averaging the verbal fluency (actions trial), Trail Making Test trial B, and Tower of London total moves standard z-scores.