Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2013 Nov 25.

Published in final edited form as: Brain Cogn. 2006 Oct 31;63(3):10.1016/j.bandc.2006.09.006. doi: 10.1016/j.bandc.2006.09.006

Table 2.

Summary statistics for the measures from the tasks postulated to involve planning

	Age group			Age R²

	18–39	40–59	60–93	Age	Age²	Age³
Mazes
Trace (s)	5.7 (3.4)	5.8 (3.0)	7.8 (4.4)	.08^*	.02	.04^*
Solve (s)	10.8 (4.5)	14.6 (6.4)	21.9 (12.3)	.27^*	.02^*	.01
Difference (solve-trace)	5.1 (3.8)	8.9 (6.1)	14.1 (11.6)	.20^*	.01	.00
Ratio (solve/trace)	2.2 (0.9)	2.9 (1.4)	3.3 (2.5)	.07^*	.00	.00
Zoo trip
Errors	.03 (.18)	.05 (.22)	.13 (.37)	.04^*	.04^*	.04^*
Inefficiency	54.4 (2.7)	54.9 (3.7)	56.3 (4.4)	.05^*	.04^*	.03^*

Note: Values in parentheses are standard deviations.

^*

p < .01.