. Author manuscript; available in PMC: 2021 Dec 1.

Published in final edited form as: J Learn Disabil. 2021 Jan 14;54(6):466–483. doi: 10.1177/0022219420982981

Table 3.

Median Correlation Values for Academic Measures by Academic Domain

		Relations among academic measures in Table 2
	MZ Intraclass Correlation	Within domain and complexity	Within domain, across complexity	Across domain
Basic Reading	.83	.73	.47	.46
Complex Reading	.59	.46	.47	.34
Basic Math	.76	.64	.58	.44
Complex Math	.67	.68	.58	.46
Basic Writing	.80	.40	.41	.45
Complex Writing	.54	.41	.41	.40