Table 3. Model Fit for Within-Wave Confirmatory Factor Models.

Wave/model	χ2	df	RMSEA	SRMR
Wave 1
Four factors	296.17	146	.039	.041
Three factors	304.28	149	.039	.041
Two factors	325.32	151	.041	.043
One factor	522.23	152	.060	.062
One factor with correlated errors	316.41	146	.042	.041
Wave 3
Four factors	346.67	146	.047	.050
Three factors	394.89	149	.051	.052
Two factors	425.19	151	.054	.054
One factor	639.41	152	.072	.069
One factor with correlated errors	371.94	146	.050	.045
Wave 5
Four factors	332.21	146	.046	.050
Three factors	378.09	149	.050	.051
Two factors	420.01	151	.054	.055
One factor	664.06	152	.075	.071
One factor with correlated errors	344.82	146	.047	.042
Wave 7
Four factors	384.51	146	.054	.058
Three factors	456.75	149	.060	.060
Two factors	492.31	151	.063	.062
One factor	760.36	152	.084	.079
One factor with correlated errors	394.91	146	.055	.046

Note. RMSEA = root-mean-square error of approximation; SRMR = standardized root-mean-square residual.