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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Am J Drug Alcohol Abuse. 2009;35(4):214–219. doi: 10.1080/00952990903005932

Table 1.

Measures of model fit.

Model G2 df BIC AIC
2 class 375.96 112 473.46 405.96
3 class 190.56 104 340.05 236.56
4 class 144.84 96 346.33 206.84
5 class 114.4 88 367.89 192.4
4 class - Gender With constraints 284.34 221 505.28 352.34
4 class - Gender No constraints 257.99 193 660.88 381.99
4 class – Ever Smoked With constraints 239.48 221 457.71 307.48
4 class – Ever Smoked No constraints 206.60 193 604.54 330.60
4 class – Ever Drank With constraints 271.63 221 489.75 339.63
4 class – Ever Drank No constraints 221.63 193 619.37 345.63

Note: G2 = log-likelihood statistic, df = degrees of freedom, BIC = Bayesian Information Criterion, AIC = Akaike Information Criterion (for BIC and AIC, smaller values are better)