. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: Alcohol Clin Exp Res. 2015 Sep 30;39(11):2163–2170. doi: 10.1111/acer.12878

Table 2.

AIC Values for the Best-Fitting Models of Age-Related Change in MPQ Personality Traits Versus Models that Include an Effect of Alcohol Use Initiation on Level of the MPQ Traits

	Models
Trait	Linear + nonlinear age-related change	Age-related change + effects of initiation
Well-being	77340.57	67211.96
Stress Reaction	80307.65	69811.06
Alienation	79092.42	68598.05
Aggression	79598.00	68934.68
Control	77182.75	66875.31
Harm Avoidance	81904.56	77104.79

N = 3,211. AIC = Akaike’s information criterion. MPQ = Multidimensional Personality Questionnaire. Linear + nonlinear age-related change = models that include effects for linear, quadratic, and cubic age-related change in traits over time. Age-related change + effects of initiation = models that include effects for linear, quadratic, and cubic age-related change in traits over time and an effect of alcohol use initiation on level of the MPQ traits. Lower AIC values denote better fit.