Table 2.

Mean Summary Data for the Experimental and Neuropsychological Measures of Executive Function, and Other Neuropsychological Measures for the Younger and Older Adult Groups

	Younger adults N = 70		Young-old HOA N = 45		Old-old HOA N = 25
Test	M	SD	M	SD	M	SD	F
Experimental Executive
Antisaccade	80.05	13.25	77.86a	13.34	66.58b	16.76	28.08***	YA>YO>OO
Keep Track Task	22.16	2.32	20.31	2.18	16.76	4.27	36.43***	YA>YO>OO
Number Letter Taskt	.65d	.36	.92c	.40	1.02b	.34	12.77***	YA>YO=OO
Neuropsychological Executive
Haylingt	7.06	16.53	25.30c	23.39	31.16	22.96	18.48***	YA>YO=OO
Reading Span	43.89	6.45	40.62	7.01	34.12	8.21	18.25***	YA>YO>OO
Trails Bt	25.76g	15.45	37.49a	19.63	69.16	58.84	13.69***	YA=YO>OO
Neuropsychological Other
MAS delayed prose	6.13i	1.41	6.91	1.10	5.92	1.50	5.46**	YA=YO>OO
Boston Naming Test	50.33i	9.22	58.14c	2.29	56.48	2.99	16.98***	YA<YO=OO
Facial Recognition Test	48.07i	3.26	48.02	3.75	47.32	3.75	.33

Note. MAS = Memory Assessment Scale.

^an = 43.

^bn = 24.

^cn = 44.

^dn = 69.

^en = 67.

^fn = 68.

^gn = 37.

^hn = 15.

^tTrails B-A; higher scores represent poorer performance.

^***p < .001.