Table 8.

Comparisons of concurrent models.

	χ2	DF	FI	RMSEA
Model 1 – Single factor	152.930	31	.824	.142
Model 2 – Two factors (Figure 1)	99.334	30	.900	.109
Model 3 – Series 1	150.778	30	.826	.144
Model 4 – Series 2	149.000	30	.828	.143
Model 5 – Series 3	152.348	30	.824	.145
Model 6 – Series 4	149.860	30	.827	.143
Model 7 – Model 2 with muscles in the competence dimension	60.003	30	.957	.072
Model 8 – Model 2 without muscles	42.779	22	.966	.070