Table 5.

Pearson’s Correlations for Domain Composites, By Group

			Schizophrenia	Siblings	Controls
Processing speed	<–>	Verbal memory	.302	.144	.268
Processing speed	<–>	Span	.393	.240	.274
Processing speed	<–>	Nback	.421	.348	.307
Processing speed	<–>	Card sorting	.323	.215	.237
Processing speed	<–>	Visual memory	.305	.206	.197
Verbal memory	<–>	Span	.376	.222	.305
Verbal memory	<–>	Nback	.381	.239	.236
Verbal memory	<–>	Card sorting	.360	.127	.149
Verbal memory	<–>	Visual memory	.443	.259	.232
Span	<–>	Nback	.376	.349	.253
Span	<–>	Card sorting	.319	.242	.199
Span	<–>	Visual memory	.328	.097	.219
Nback	<–>	Card sorting	.450	.329	.249
Nback	<–>	Visual memory	.461	.323	.282
Card sorting	<–>	Visual memory	.339	.226	.294
	Mean		.372	.239	.245