The Construct Validity of Vallerand’s Academic Motivation Scale (AMS)

Table 5

GOF indices for the study scales.

Model			IFI	CFI	GFI	RMSEA	# sample moments	# parameters
Recommended value	Less the better		≥0.90	≥0.90	≥0.90	RMSEA ≤ 0.08
Three factors with 28 items	1736.025	4.960	0.783	0.782	0.770	0.099	406	56	350
Three factors with 24 items	1244.966	4.940	0.8120	0.8110	0.8160	0.0990	300	48	252
Five factors with 28 items	2242.247	6.406	0.704	0.703	0.711	0.116	406	56	350
Seven factors with 28 items	3034.794	8.671	0.5800	0.5780	0.5860	0.1380	406	56	350
Second order seven factors with 28 items	2618.741	7.842	0.645	0.622	0.622	0.127	406	56	350
Modified three factors with 24 items	756.073	3.09	0.903	0.903	0.869	0.072	300	56	244