Table 4.

Fit indices for a multi-group random-intercept panel model (RIPM) of sex for overweight and normal weight samples.

Model	χ2	df	Comp.	Δχ2	Δdf	p value	RMSEA	CFI	SRMR
M0	1833.93	224					0.068	0.959	0.086
M1 (bmib -> fleb)	1834.09	225	M1-M0	0.16	1	0.689	0.068	0.959	0.086
M2 (bmib -> endb)	1836.72	225	M2-M0	2.79	1	0.095	0.068	0.959	0.086
M3 (bmib -> powb)	1856.48	225	M3-M0	22.55 *	1	<0.001	0.068	0.959	0.091
M4 (bmiw -> flexw)	1843.87	225	M4-M0	9.94 *	1 a	0.002	0.068	0.958	0.086
M5 (bmiw -> endw)	1834.80	225	M5-M0	0.87	1 b	0.351	0.068	0.959	0.086
M6 (bmiw -> poww)	1835.91	225	M6-M0	1.98	1 c	0.159	0.068	0.959	0.086
M7 (bmiw auto)	1836.14	225	M7-M0	2.21	1 d	0.137	0.068	0.959	0.086
M8 (flexw auto)	1834.62	225	M8-M0	0.69	1 e	0.406	0.068	0.959	0.086
M9 (endw auto)	1840.03	225	M9-M0	6.10 *	1 f	0.014	0.068	0.959	0.086
M10 (poww auto)	1834.26	225	M10-M0	0.33	1 g	0.566	0.068	0.959	0.086
M11 (fleb_endb_r)	1835.31	225	M11-M0	1.38	1	0.240	0.068	0.959	0.086
M12 (fleb_powb_r)	1834.43	225	M12-M0	0.50	1	0.480	0.068	0.959	0.086
M13 (endb_powb_r)	1834.37	225	M13-M0	0.44	1	0.507	0.068	0.959	0.086
M14 (flew_endw_r)	1834.92	225	M14-M0	0.99	1 h	0.320	0.067	0.959	0.086
M15 (flew_poww_r)	1840.14	225	M15-M0	6.21 *	1 i	0.012	0.068	0.959	0.086
M16 (endw_poww_r)	1937.95	225	M16-M0	104.02 *	1 j	<0.001	0.070	0.956	0.085

Note: a, b, c, d, e, f, g, h, i, j: Due to equality constraints in the baseline RIPM (M0), the change of df is 1. bmib, between-level BMI; fleb, between-level flexibility; endb, between-level muscular endurance; powb, between-level explosive power; bmiw, within-level BMI; flew, within-level flexibility; endw, within-level muscular endurance; poww, within-level explosive power; auto, autoregression; r, correlation; χ², chi-squared; RMSEA, Root mean square error of approximation; CFI, Comparative-Fit Index; SRMR, Standardized root mean square residual; * p < 0.05.