Split file	Parameter	β	SE	p value	Lower	Upper
					95 % CI	95 % CI
Intervention group	Intercept	1.99	0.26	<0.001	1.49	2.50
	Negative affect previous moment	0.41	0.04	<0.001	0.32	0.49
	Mindfulness previous moment	−0.17	0.04	<0.001	−0.25	−0.10
Control group	Intercept	1.88	0.25	<0.001	1.39	2.38
	Negative affect previous moment	0.48	0.04	<0.001	0.39	0.56
	Mindfulness previous moment	−0.14	0.04	0.001	−0.22	−0.06

Outcome: Negative affect