. 2014 Mar 7;9(3):e91285. doi: 10.1371/journal.pone.0091285

Table 9. Mediation analyses for chronotype, daydream frequency, mind wandering, sleep quality and positive affect.

Dependent variable = Daydream Frequency
	IV	Mediator 1	Mediator 2	DV	IV β	Mediator 1 β	Mediator 2 β	Age β	Gender β
Path c	rMEQ	−	−	DF	−.110	−	−	.034	−.064
Path a1	rMEQ	PSQI Global	−	−	−.170^**	−	−	.108	.056
Path a2	rMEQ	−	PA	−	.232^***	−	−	−.043	−.128^*
Paths b1, b2 & c’	rMEQ	PSQI Global	PA	DF	−.008 (p = .897)	.266^***	−.246^***	−.006	−.110
Final model: R = .428; adjusted R² = .167; F(5, 264) = 11.816 Indirect effects: PSQI Global: bias corrected^† 95% C.I. = −.2853 to −.0355; PA: bias corrected 95% C.I. = −.3178 to −.0758
*Dependent variable = Mind Wandering*
	IV	Mediator 1	Mediator 2	DV	IV β	Mediator 1 β	Mediator 2 β	Age β	Gender β
Path c	rMEQ	−	−	MW	−.208^**	−	−	.052	.009
Path a1	rMEQ	PSQI Global	−	−	−.170^**	−	−	.108	.056
Path a2	rMEQ	−	PA	−	.232^***	−	−	−.043	−.128^*
Paths b1, b2 & c’	rMEQ	PSQI Global	PA	MW	−.098 (p = .084)	.293^***	−.263^***	.009	−.041
Final model: R = .488; adjusted R² = .224; F(5, 264) = 16.542 Indirect effects: PSQI Global: bias corrected 95% C.I. = −.2597 to −.0409; PA: bias corrected 95% C.I. = −.2828 to −.0683
*Dependent variable = Chronotype*
	IV	Mediator 1	Mediator 2	DV	IV β	Mediator 1 β	Mediator 2 β	Age β	Gender β
Path c	DF	−	−	rMEQ	−.108	−	−	−.042	.132^*
Path a1	DF	PSQI Global	−	−	.347^***	−	−	.102	.06
Path a2	DF	−	PA	−	−.335^***	−	−	−.041	−.122^*
Paths b1, b2 & c’	DF	PSQI Global	PA	rMEQ	−.008 (p = .897)	−.101 (p = .121)	.193^**	−.024	.161^**
Final model: R = .293; adjusted R² = .068; F(5, 264) = 4.949 Indirect effects: PSQI Global: bias corrected 95% C.I. = −.0294 to .0042; PA: bias corrected 95% C.I. = −.0397 to −.0079
*Dependent variable = Chronotype*
	IV	Mediator 1	Mediator 2	DV	IV β	Mediator 1 β	Mediator 2 β	Age β	Gender β
Path c	MW	−	−	rMEQ	−.204^**	−	−	−.034	.136^*
Path a1	MW	PSQI Global	−	−	.393^***	−	−	.091	.04
Path a2	MW	−	PA	−	−.380^***	−	−	−.031	−.103
Paths b1, b2 & c’	MW	PSQI Global	PA	rMEQ	−.116 (p = .084)	−.068 (p = .298)	.162^*	−.023	.156^**
Final model: R = .310; adjusted R² = .079; F(5, 264) = 5.606 Indirect effects: PSQI Global: bias corrected 95% C.I. = −.0337 to .0121; PA: bias corrected 95% C.I. = −.0477 to −.0061

^†

Taking account of the difference between the initial and the mean indirect effect estimates.

*p≤.05;

**p≤.01;

***p≤.0005.