Table 3. Fit Indices for Latent Class Growth Analysis on Controls’ Perceived Stress.

	Two-class model		Three-class model		Four-class model		Five-class model
	linear	quadratic	linear	quadratic	linear	quadratic	linear	quadratic
Note. BIC = Bayesian Information Criteria; aBIC = sample size adjusted BIC; LMR-LRT = Lo-Mendell-Rubin Likelihood Ratio Test; BLRT = Bootstrap Likelihood Ratio Test; c# = class number.
Free parameters	9	11	12	15	15	19	18	23
Log likelihood	−1,736.45	−1,733.90	−1,697.15	−1,690.57	−1,686.35	−1,677.97	−1,682.21	−1,670.57
BIC	3,527.81	3,534.93	3,467.52	3,472.67	3,464.24	3,471.89	3,474.26	3,481.51
aBIC	3,499.25	3,500.02	3,429.44	3,425.07	3,416.63	3,411.59	3,417.14	3,408.52
Entropy	.52	.52	.69	.70	.71	.68	.70	.70
LMR-LRT p	.005	.02	<.005	.008	.03	.03	.23	.61
BLRT p	<.001	<.001	<.001	<.001	<.001	<.001	.05	.01
Class counts (fit probabilities)
c#1	213 (.84)	195 (.83)	47 (.84)	85 (.85)	7 (.89)	108 (.82)	6 (.86)	32 (.88)
c#2	234 (.85)	252 (.86)	88 (.84)	45 (.86)	287 (.84)	39 (.87)	289 (.81)	245 (.79)
c#3			312 (.88)	317 (.87)	108 (.82)	293 (.91)	49 (.78)	9 (.88)
c#4					45 (.83)	7 (.82)	7 (.90)	12 (.85)
c#5							96 (.81)	149 (.77)