Correlation Matrix for All of the Tests Included in the Study, as well as Chronological Age.

	Age	CS	RS	MS	LRS	MA	MC	BDS	FAS	WCST	LC	PC	DSS	SV	Syn	Ant	PR	FR16	FR40
Age	1
Computation Span	-.200**	1
Reading Span	-.284**	.477**	1
Match Span	-.409**	.424**	.462**	1
Letter Rotation Span	-.544**	.385**	.427**	.498**	1
Mental Arithmetic	-.107	.414**	.264**	.275**	.430**	1
Mental Control	-.353**	.380**	.331**	.307**	.479**	.449**	1
Backward Digit Span	-.180*	.376**	.432**	.439**	.455**	.403**	.407**	1
Letter Fluency (FAS)	-.184**	.299**	.338**	.188**	.228**	.287**	.405**	.261**	1
Wisconsin Card Sorting Test	-.541**	.325**	.362**	.445**	.599**	.403**	.302**	.311**	.196**	1
Letter Comparison	-.696**	.365**	.399**	.408**	.543**	.241**	.456**	.331**	.330**	.514**	1
Pattern Comparison	-.736**	.273**	.337**	.428**	.530**	.218**	.434**	.252**	.241**	.538**	.786**	1
Digit Symbol Substitution	-.711**	.408**	.447**	.507**	.565**	.255**	.479**	.295**	.357**	.560**	.758**	.750**	1
Shiply Vocabulary	.201**	.210**	.261**	.065	.133	.421**	.180*	.294**	.310**	.172*	.124	.046	.040	1
Synonyms	.217**	.186**	.266**	.068	.106	.364**	.186**	.269**	.291**	.086	.082	.011	.027	.786**	1
Antonyms	.127	.259**	.266**	.085	.195**	.392**	.231**	.273**	.267**	.167*	.141*	.083	.057	.719**	.775**	1
Prose Recall	-.219**	.304**	.325**	.209**	.376**	.458**	.254**	.291**	.196**	.361**	.291**	.269**	.323**	.342**	.333**	.317**	1
Free Recall-16 Words	-.324**	.218**	.354**	.289**	.355**	.319**	.248**	.282**	.273**	.314**	.250**	.292**	.340**	.168*	.185**	.194**	.424**	1
Free Recall-40 Words	-.328**	.359**	.435**	.396**	.428**	.352**	.290**	.318**	.322**	.371**	.358**	.335**	.419**	.211**	.254**	.222**	.501**	.566**	1

^**denotes significance at p<.01;

^*denotes significance at p<.05