Table 5

Results of jackknife sensitivity analysis

Meta-analysis	Studies excluded	Effect size			Heterogeneity

		Hedges’ g^*	95% CI	p value	I²	p value
Attention	Allenby et al.65	0.19	−0.11 to 0.50	0.22	77	< 0.001
	Breitling et al.67	0.14	−0.13 to 0.42	0.31	76	< 0.001
	Cosmo et al.66	0.20	−0.10 to 0.50	0.19	78	< 0.001
	Jacoby et al.42	0.19	−0.12 to 0.49	0.24	77	< 0.001
	Munz et al.60	0.16	−0.14 to 0.46	0.30	77	< 0.001
	Nejati et al.68 (experiment 1)	0.19	−0.12 to 0.50	0.22	77	< 0.001
	Nejati et al.68 (experiment 2)	0.08	−0.12 to 0.27	0.43	49	0.040
	Prehn-Kristensen et al.61	0.23	−0.03 to 0.50	0.09	72	0.001
	Soff et al.62	0.18	−0.11 to 0.47	0.22	78	< 0.001
	Soltaninejad et al.64	0.20	−0.10 to 0.50	0.19	77	< 0.001
	Soltaninejad et al.43	0.14	−0.15 to 0.42	0.35	75	0.001
	Sotnikova et al.63	0.24	−0.03 to 0.50	0.08	70	0.002
Inhibition	Allenby et al.65	0.22	−0.04 to 0.48	0.09	65	0.010
	Breitling et al.67	0.19	−0.03 to 0.41	0.10	62	0.010
	Cosmo et al.66	0.24	0.01 to 0.48	0.040	63	0.010
	Jacoby et al.42	0.20	−0.05 to 0.44	0.12	65	0.010
	Munz et al.60	0.25	0.05 to 0.46	0.020	53	0.020
	Nejati et al.68 (experiment 1)	0.19	−0.06 to 0.43	0.13	63	0.010
	Nejati et al.68 (experiment 2)	0.15	−0.03 to 0.32	0.10	37	0.12
	Soff et al.62	0.21	−0.02 to 0.44	0.07	65	0.010
	Soltaninejad et al.64	0.20	−0.05 to 0.45	0.12	65	0.010
	Soltaninejad et al.43	0.26	0.04 to 0.48	0.020	52	0.030
	Sotnikova et al.63	0.23	−0.01 to 0.47	0.06	66	0.010
Processing speed	Allenby et al.65	0.19	0.02 to 0.35	0.030	0	0.53
	Jacoby et al.42	0.15	−0.02 to 0.32	0.09	13	0.38
	Munz et al.60	0.16	0.00 to 0.33	0.06	10	0.44
	Nejati et al.68 (experiment 1)	0.09	−0.08 to 0.25	0.29	0	0.79
	Nejati et al.68 (experiment 2)	0.12	−0.04 to 0.28	0.15	2	0.50
	Soltaninejad et al.64	0.13	−0.04 to 0.29	0.14	9	0.42
	Soltaninejad et al.43	0.17	0.01 to 0.33	0.040	5	0.50
	Sotnikova et al.63	0.15	−0.02 to 0.31	0.08	11	0.40

CI = confidence interval.
↵* Effect size estimates assumed a correlation of 0.629 for crossover studies and a correlation of 0.3 for multiple dependent effects.