Table 5.

Age and education effects on performance of MWCST, Digit span, and Stroop color and word test.

Variable	Age						Education
	F	p	Post-hoc	Cohen's d	Effect size		F	p	Post-hoc	Cohen's d	Effect size
Modified Wisconsin Card Sorting Test
• Categories completed							85.759	<0.001	H >L	1.805	Large
• Perseverative errors							79.995	<0.001	L>H	-1.92	Large
• Non-perseverative errors							23.770	<0.001	L>H	-0.898	Large
• Failure to maintain set							11.312	0.001	L>H	-0.626	Intermediate
Digit span
• Forward accuracy							26.378	<0.001	H >L	1.025	Large
• Forward errors							26.378	<0.001	L>H	-1.025	Large
• Forward span length							20.126	<0.001	H >L	0.928	Large
• Backwards accuracy							9.227	0.003	H >L	0.629	Intermediate
• Backwards errors							9.227	0.003	L>H	-0.629	Intermediate
• Backwards span length							11.928	0.001	H >L	0.739	Intermediate
• Forward minus backwards accuracy							5.137	0.025	H>L	0.445	Small
Stroop color and word test
• Words correct answers							18.491	<0.001	H >L	0.733	Intermediate
• Words errors
• Color correct answers	6.942	0.001	Y>E	-0.620	Intermediate		17.627	<0.001	H>L	0.674	Intermediate
• Color errors
• Color-word correct answers	4.303	0.015	Y>E	-0.548	Intermediate		13.844	<0.001	H>L	0.598	Intermediate
• Color-word errors							4.456	0.037	L>H	-0.303	Small
• Interference score

Y=19-39 years old; E=60-75 years old; L=low education (5-8 years); H=high education (9 or more years).