Table 3.

Results of the Multilevel Models Examining Associations Between Positive and Negative Affect and Craving

Fixed Effects		Estimate	Standard Error
Intercept (γ00)		1310.45*	180.12
Day-level PA (γ10)		−2.86	4.39
Day-level NA (γ20)		28.62*	4.89
Time (γ30)		−19.65*	9.03
Person-level PA (γ01)		5.41	11.70
Person-level NA (γ02)		51.84*	11.33
Day-level PA × Person-level PA (γ11)		0.72*	0.32
Day-level NA × Person-level NA (γ21)		0.53	0.31
Age (γ03)		−22.38	20.75
Gender (γ04)		−203.79	388.38
Random Effects		Estimate	Standard Error
Intercept (γ02)		2260448	408374
Day-level PA (γ12)		607.12	239.23
Day-level NA (γ22)		864.49	291.71
AR(1)		0.04	0.06
Residual (γ2)		768496	47615
Fit Indices
AIC		12807.60
BIC		12826.00

Note: N_observations =764 days nested within 73 persons;

AIC = Akaike information criteria; BIC = Bayesian information criteria.

^*p < 0.05.