Table 5:

Results of multilevel models predicting repetitive thought total (N=147, n=1017).

	Null Model	Model 1	Model 2	Model 3	Model 4
	γ (SE)	γ (SE)	γ (SE)	γ (SE)	γ (SE)
Fixed effects
Intercept	0.146 (0.308)	1.32* (0.48)	0.313 (0.329)	0.269 (0.286)	4.88* (2.01)
Age at study entry		−0.10 (0.062)	0.005 (0.057)	−0.029 (0.049)	−0.061 (0.065)
Education		−0.185 (0.126)	−0.291* (0.128)	−0.171 (0.114)	−0.191 (0.130)
Practice effects		−2.06* (0.690)			−2.35* (0.722)
EF between		−9.58* (3.19)			−6.12 (3.45)
EF within		1.23 (2.40)			2.26 (3.51)
HRV between			−0.278 (0.280)		−0.072 (0.278)
HRV within			−0.124 (0.075)		0.056 (0.112)
Subjective between				−0.086** (0.017)	−0.087** (0.020)
Subjective within				−0.019 (0.010)	−0.034 (0.025)
Random effects
Intercept SD	3.58	3.38	3.55	3.23	3.16
Residual SD	2.39	2.20	2.35	2.37	2.22
Model fit
LL	−2528.5	−1201.9	−1571.6	−2431.1	−750.07
AIC	5063.0	2419.7	3157.2	4876.2	1524.1

Note. Results (Models 3 and 4) remain unchanged when excluding the observations that had inconsistent subjective self-regulation scores. EF = executive function; HRV = heart rate variability; LL = log likelihood; AIC =Akaike information criterion.

^*p < .05.

^**p < .001.