Table 11.

Bivariate genetic correlations by moderators for reading and math.

Grade-Level	rA	SE	p	Lower CI	Upper CI
Grade 3	0.80	0.13	<.001	0.68	0.87
Grade 5	0.80	0.13	<.001	0.70	0.88
Grade 7	0.77	0.13	<.001	0.65	0.86
Grade 9	0.75	0.13	<.001	0.62	0.84
Mixed Elementary	0.98	0.23	<.001	0.95	0.99
Project
TEDS	0.62	0.10	<.001	0.47	0.73
CLDRC	0.51	0.22	.01	0.13	0.76
WRRMP	0.76	0.12	<.001	0.64	0.83
Other	0.94	0.35	<.001	0.76	0.98
NTR	0.61	0.35	.04	0.02	0.86
ATP	0.80	0.14	<.001	0.65	0.86
Reading Assessment
PIAT	0.63	0.14	<.001	0.44	0.77
WJ-Reading	0.56	0.18	<.001	0.27	0.76
Reading Composite	0.82	0.12	<.001	0.72	0.89
Other	0.85	0.28	<.001	0.60	0.95
FCAT	0.44	0.48	.32	−0.44	0.89
FAIR	0.82	0.34	<.001	0.46	0.95
GOAL	0.67	0.28	.004	0.26	0.88
TOWRE	0.43	0.28	.12	−0.12	0.75
CTOPP RAN	0.38	0.22	.07	−0.03	0.68
NAPLAN	0.78	0.14	<.001	0.65	0.87
Reading Assessment Format
Cloze	0.90	0.49	.003	0.46	0.99
Multiple Choice	0.73	0.14	<.001	0.57	0.83
Mixed	0.77	0.08	<.001	0.69	0.82
Rating Scale	0.61	0.35	.04	0.03	0.89
Retell	0.48	0.13	<.001	0.25	0.65

Note. TEDS = , CLDRC = Colorado Learning Disability Research Center, WRRMP = Western Reserve Reading M Project, NTR = National Twin Registry, ATP = Australia Twin Project; PIAT= Peabody Individual Achievement Test, WJ-Reading=Woodcock Johnson Tests of Achievement-III reading subtest. FCAT=Florida Comprehensive Assessment Test, FAIR=Florida Assessment for Instruction in Reading, GOAL= Global Online Assessment for Learning—Formative Assessment in Literacy for Key Stage 3, TOWRE=Test of Silent Word Reading Efficiency, WIAT=Wechsler Individual Achievement Test, CTOPP RAN = Comprehensive Test of Phonological Processing—Rapid Automatized Naming composite, NAPLAN = National Assessment Program—Literacy and Numeracy.