Table 1.

Results of Latent Class Analysis of Internet Addiction Test and Problematic Use of the Internet Subtypes in the Stellenbosch Sample

Classes	Log Likelihood	BIC	Entropy	LMR	p
IAT Total
1	−32,299.882a	65,192.978
2	−29,177.004a	59,547.851	.906	6235.245	<.001
3	−28,257.598a	58,309.669	.901	1835.959	.746
PUI Subtypes
1	− 7750.398b	15,887.233
2	− 7376.133b	15,531.478	.830	746.628	<.001
3	− 7236.328c	15,644.641	.761	278.900	.759

Note. LMR Lo-Mendell-Rubin adjusted Likelihood Ratio Test when comparing the k to k – 1 class model; p = probability value for the Lo-Mendell-Rubin (LMR) adjusted Likelihood Ratio Test (LRT). IAT Total N = 1661. PUI Subtypes N = 564. ^aBest loglikelihood values initially obtained using 160, 32 and then replicated using 320, 64 random starting value perturbations.^bBest loglikelihood values initially obtained using 80, 16 and then replicated using 160, 32 random starting value perturbations.^cBest loglikelihood value initially required 1280, 256 random starting value perturbations and then replication using 2560, 512 random starts