Skip to main content
. Author manuscript; available in PMC: 2013 May 28.
Published in final edited form as: Stat Med. 2012 Aug 3;31(26):3192–3210. doi: 10.1002/sim.5393

Table II.

Mixed-effects models of Negative Affect, n = 461 and Σijnij=3462 and Σijknijk=14150, maximum likelihood estimates (standard errors)

Random Intercept Mixed-effects Location Scale Model

two-level
three-level
Parameters Mean (β) Mean (β) BS (λ) WS (τ) Mean (β) BS (λ) WS-BD (α) WS-WD (τ)
Intercept 3.096*** (0.200) 3.094*** (0.191) 0.281 (0.215) 0.637*** (0.138) 3.128*** (0.191) 0.227 (0.227) -0.660** (0.206) 0.361* (0.145)
Smoker 0.367* (0.162) 0.399* (0.162) 0.187 (0.156) 0.372*** (0.112) 0.395* (0.160) 0.138 (0.167) 0.572*** (0.144) 0.348** (0.117)
PropSmk -1.060 (0.766) -1.223 (0.750) -0.427 (0.752) -1.266* (0.530) -1.262 (0.731) -0.469 (0.812) -2.413** (0.785) -1.163* (0.561)
NovSeekC 0.183 (0.098) 0.184 (0.097) -0.154 (0.087) 0.221** (0.068) 0.188 (0.097) -0.173 (0.094) 0.259** (0.099) 0.203** (0.071)
NegMoodRegC -0.784*** (0.096) -0.767*** (0.095) -0.239* (0.096) -0.274*** (0.066) -0.759*** (0.094) -0.234* (0.103) -0.730*** (0.095) -0.194** (0.070)
Male -0.408** (0.135) -0.352** (0.130) -0.224 (0.127) -0.361*** (0.093) -0.349** (0.129) -0.264* (0.133) -0.172 (0.136) -0.388*** (0.098)
Grade10 0.091 (0.128) 0.105 (0.125) 0.027 (0.122) -0.069 (0.088) 0.096 (0.124) 0.013 (0.129) 0.059 (0.126) -0.082 (0.093)
AloneBS 0.926** (0.333) 0.771* (0.323) 0.512 (0.311) 0.357 (0.230) 0.776* (0.321) 0.634 (0.337) -0.525 (0.319) 0.531* (0.242)
AloneWS 0.347*** (0.030) 0.166*** (0.021) 0.050 (0.029) 0.165*** (0.021) 0.042 (0.032)
WeekEnd -0.228*** (0.045) -0.102*** (0.020) 0.029 (0.032) -0.202*** (0.036) 0.048 (0.146) -0.006 (0.034)

WS variance of scale σω2 0.801*** (0.058) 0.872*** (0.064)
Covariance σνω 0.520*** (0.061) 0.512*** (0.062)

-2logL 55058 52814 52086
AIC 55084 52874 52164
BIC 55138 52998 52326
***

p < 0.001

**

p < 0.01

*

p < 0.05