Table 10.

Studies contributing effect size data for the meta-analysis of working memory-response time

Study	Task/outcome	H s g	Standard error	n	Agea	% male	Smoking status	Cigarettes per daya	Nicotine dose	Route of administration
Ernst et al. 2001a	n-back	0.09	0.28	11	30	45	NSm	NA	4 mg	Buccal
Ernst et al. 2001b	n-back	0.15	0.30	9	21–45	33	NSm	NA	4 mg	Buccal
Foulds et al. 1996b	Digit recall	0.88	0.27	18	25	50	NSm	NA	0.6 mg	Subcutaneous
Heishman and Henningfield 2000b	Digit recall	1.05	0.34	12	31	100	NSm	NA	8 mg	Buccal
Houlihan et al. 2001	Sternberg	0.83	0.25	20	26	60	Sm	>20	1.1 mg	Inhalation-cigarette
Jacobsen et al. 2006	n-back	0.00	0.25	14	NR	NR	NSm	NA	3.5 or 7 mg	Transdermal
Kleykamp et al. 2005b	n-back	0.15	0.22	20	20	45	NSm	NA	4 mg	Buccal
Myers et al. 2008b	n-back	0.16	0.19	28	36	50	Sm	22	2 mg	Intranasal
Perkins et al. 2001b	Sternberg	0.29	0.22	20	34	50	NSm	NA	10–20 μg/kg	Intranasal
Perkins et al. 2008b	Sternberg	0.21	0.09	129	25	39	NSm	NA	5–10 μg/kg	Intranasal

Nsm nonsmoker, Sm smoker, NA not applicable, NR not reported

^aMean value

^bAdministered multiple active nicotine doses