Table 2.

Summary of cognitive performance and mood states in the control and mask wearing sessions (n = 42)

	Control		Mask		Session Difference
	M	SD	M	SD	95% CI	g	%
Mood States
Sad	13.14	14.36	18.14	16.94	[− 0.42, 10.42]	0.31	38.05
Energetic	47.81	20.54	45.33	18.41	[− 10.60, 5.64]	0.12	− 5.18
Tense*	27.00	20.16	33.16	20.13	[0.30, 12.03]	0.30	22.81
Happy*	65.69	14.51	59.69	14.43	[− 10.80, − 1.21]	0.41	− 9.13
Tired	53.66	19.78	57.95	20.44	[− 3.43, 12.00]	0.21	7.99
Calm	64.83	17.49	59.62	19.86	[− 11.91, 1.50]	0.27	− 8.04
Cognitive Tests
Pro
Median RT (ms)	298	37.65	307	43.32	[− 2.00, 20.00]	0.22	3.02
Accuracy (%)	99.70	0.98	99.70	0.82	[−  0.30, 0.30]	0.00	0.00
Anti
Median RT (ms)	341	41.35	353	52.66	[− 2, 30.00]	0.26	3.52
Accuracy (%)	98.57	1.84	98.57	2.08	[− 1.00, 1.00]	0.00	0.00
Pro/Anti
Median RT (ms)	479	67.41	482	77.35	[− 2.00, 30.00]	0.04	0.63
Accuracy (%)	96.37	3.32	95.36	4.40	[− 3.00, 0.40]	0.25	− 1.05
Simon compatible
Median RT (ms)	432	41.44	434	60.07	[− 14.00, 20.00]	0.05	0.46
Accuracy (%)	97.78	2.91	98.17	2.47	[− 1.00, 1.40]	0.14	0.40
Simon incompatible
Median RT (ms)	473	48.10	486	59.55	[− 10.00, 32.00]	0.24	2.75
Accuracy (%)	95.24	5.11	94.52	6.45	[− 3.00, 1.40]	0.12	− 0.76
Flanker compatible
Median RT (ms)	437	67.29	451	66.82	[− 1.00, 30.00]	0.21	3.20
Accuracy (%)	96.67	4.37	97.02	4.28	[− 2.00, 2.20]	0.07	0.36
Flanker incompatible
Median RT (ms)**	463	72.95	488	73.96	[10.00, 40.00]	0.33	5.40
Accuracy (%)	96.31	5.19	96.90	3.82	[− 1.00, 2.20]	0.13	0.61
Forward spatial
Score	67.42	22.77	63.66	17.48	[− 11.17, 3.65]	0.18	− 5.58
Backward spatial
Score (n = 40)	63.52	26.26	61.00	25.47	[− 11.33, 4.24]	0.09	− 3.97
2-Back
Accuracy (%; n = 38)	86.78	6.81	86.06	6.03	[− 6.60, 5.12]	0.11	− 0.83

RT Reaction Times, Backward Spatial and 2-Back had reduced sample sizes (see text for details). *p < .05, **p < .01. g = Hedge’s g; interpretation benchmarks: ~ 0.20 small effect, ~ 0.50 medium effect. CI confidence interval. %Difference = [(Mask-Control)/Control]*100