. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: J Educ Psychol. 2014 Feb 24;106(3):762–778. doi: 10.1037/a0035921

Table 2.

Correlations, Means, Standard Deviations, Standard Scores, Percentile Rank, and Factor Loadings Of the Reading Comprehension and Vocabulary Measures Administered During the Fall and Spring Of the Academic Year

	Fall WJ-PC	Fall WJ-PV	Fall GM-C	Fall GM-V	Spring WJ-PC	Spring WJ-PV	Spring GM-C	Spring GM-V
Fall WJ-PC	1
Fall WJ-PV	.579^*	1
Fall GM-C	.627^*	.510^*	1
Fall GM-V	.705^*	.669^*	.749^*	1
Spring WJ-PC	.697^*	.517^*	.602^*	.663^*	1
Spring WJ-PV	.503^*	.821^*	.451^*	.633^*	.523^*	1
Spring GM-C	.622^*	.534^*	.780^*	.740^*	.624^*	.504^*	1
Spring GM-V	.701^*	.674^*	.707^*	.847^*	.670^*	.610^*	.760^*	1

Mean	94.75^a	98.92^a	51.81^b	55.04^b	95.96^a	99.21^a	52.07^b	59.84^b
SD	10.31^a	10.82^a	28.04^b	27.26^b	10.43^a	10.79^a	29.79^b	25.52^b
Maximum	124^a	127^a	99^b	99^b	121^a	139^a	99^b	99^b
Minimum	48^a	68^a	1^b	1^b	54^a	69^a	1^b	2^b
Factor Loadings	.85	.798	.845	.917	.835	.861	.768	.908

Note: WJ = Woodcock Johnson; PC = passage comprehension; PV = print vocabulary; GM = Gates-MacGinitie; C = comprehension; V = vocabulary; SD = standard deviation.

^*Correlation is significant at p < .001.

Standard scores

Percentile rank.