. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: J Atten Disord. 2015 Dec 23;22(9):827–838. doi: 10.1177/1087054715617532

Table 1.

Latent Class Analysis of ADHD Symptom Criteria at Ages 6, 9, and 16.

Solution	Log likelihood	Bayesian information criterion	Entropy	Lo–Mendell–Rubin Likelihood Ratio Test^a
Solution	Log likelihood	Bayesian information criterion	Entropy	2 Times the log likelihood difference			p value
3-class	−7915.5	16,701.0	0.917		561.9		.01
4-class	−7,785.6	16,733.1	0.906		259.9		.61

Results of 3-class solution				Class 1		Class 2	Class 3

Based on estimated model				67.2 (17.4%)		149.8 (38.7%)	170.0 (43.9%)
Based on most likely class membership				66 (17.1%)		150 (38.8%)	171 (44.2%)

Lo–Mendell–Rubin likelihood ratio test (LMR LRT) is a test of probability that the data were generated by a model with one fewer latent class.