Table 7.

Studies contributing effect size data for the meta-analysis of short-term episodic memory-accuracy

Study	Task/outcome	Hedges’s g	Standard error	n	Agea	% male	Smoking status	Cigarettes per daya	Nicotine dose, mg	Route of administration
Jubelt et al. 2008	Word recognition	0.15	0.27	12	35	33	NSm	NA	14	Transdermal
Krebs et al. 1994b	Prose recall	0.21	0.36	30	NR	100	Sm	13	1.5	Inhalation-cigarette
McClernon et al. 2003	Word recall	0.80	0.41	24	20	50	NSm	NA	7	Transdermal
McClernon et al. 2003	Word recall	−0.03	0.39	24	20	50	Sm	17	14 or 21	Transdermal
Phillips and Fox 1998	Word recall	0.48	0.36	30	28	50	NSm	NA	2	Buccal
Phillips and Fox 1998	Word recall	1.41	0.40	30	28	50	Sm	>5	2	Buccal
Poltavski and Petros 2005	Prose recall	0.46	0.49	17	20	100	NSm	NA	7	Transdermal
Rusted et al. 1998	Word recall	0.39	0.18	32	20–44	25	Sm	>5	0.6	Inhalation-cigarette

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

^aMean value

^bAdministered multiple active nicotine doses