Table 2.

Variances, Covariances, and Latent Means from the Piecewise Parallel Growth Curve Model.

Latent actors	ORF Int	Orf Slope G1	Orf Slope G2	NWF Int	NWF Slope G1	NWF Slope G2	PPVT G1	PPVT G2
ORF Int	344.27	.33	.10	.82	.14	.05	.34	.36
Orf Slope G1	39.97	42.94	−.56	.50	.66	.23	.31	.36
Orf Slope G2	7.94	−15.47	17.92	.00	.16	.54	.12	.16
NWF Int	281.05	60.51	−0.33	338.50	.23	.06	.40	.42
NWF Slope G1	14.60	23.55	3.79	22.93	29.65	.24	.11	.18
NWF Slope G2	4.88	7.77	12.08	6.04	6.90	27.60	.12	.15
PPVT G1	92.31	29.68	7.52	107.49	11.74	9.04	217.74	.65
PPVT G2	97.92	33.72	9.56	111.52	14.54	11.53	170.80	210.05
Latent Means	29.07	9.71	6.01	12.79	10.70	8.98	92.73	94.61

Note: Correlations are above the diagonal, covariances are below the diagonal, and variances are on the diagonal. Int=Intercept which represents average level of performance at the beginning of first grade, ORF=Oral Reading Fluency, NWF=Nonword Fluency, PPVT=Peabody Picture Vocabulary Test, G1=First Grade, G2=Second Grade. Note: Correlations are above the diagonal, covariances are below the diagonal, and variances are on the diagonal. Int=Intercept which represents average level of performance at the beginning of first grade, ORF=Oral Reading Fluency, NWF=Nonword Fluency, PPVT=Peabody Picture Vocabulary Test, G1=First Grade, G2=Second Grade.