Table 2.
Unconditional latent growth model fit statistics, by recent substance use outcome among male and female adolescents aged 11 to 17
| Intercept only model | Linear model | Quadratic model | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||||
| AIC | BIC | aBIC | LL | AIC | BIC | aBIC | LL | aLRT | AIC | BIC | aBIC | LL | aLRT | |
| Cigarettes (n=6366) | 18973 | 18986 | 18980 | −9484 | 18282 | 18316 | 18300 | −9136 | 665*** | 18139 | 18200 | 18171 | −9060 | 167*** |
| Alcohol (n=6353) | 21022 | 21036 | 21029 | −10509 | 20176 | 20210 | 20194 | −10083 | 806*** | 20051 | 20112 | 20083 | −10016 | 183*** |
| Marijuana (n= 6397) | 16039 | 16053 | 16046 | −8018 | 14971 | 15005 | 14989 | −7481 | 994*** | 14791 | 14852 | 14824 | −7387 | 259*** |
***
p<.001
Note: AIC=Akaike Information Criteria, BIC=Bayesian Information Criteria, aBIC=adjusted Bayesian Information Criteria, LL=log-likelihood, aLRT=adjusted log-likelihood ratio test