Table 7.

Analysis of covariance (ANCOVA) between age and performance on paper-and-pencil tasks while controlling for motor dexterity.

Variable	Sum of squares	df	Mean square	F	p	Partial η2
SymS	3099.43	106	1549.72	27.28	<0.01	0.344
Cod	15298.25	106	7649.12	44.07	<0.01	0.459
IT	0.071	99	0.036	1.79	0.174	0.035
Pgb.dom	224.92	106	112.46	34.19	<0.01	0.397
Pgb.non	111.03	106	55.51	22.54	<0.01	0.312
Pgb.2	407.28	106	203.64	12.87	<0.01	0.198

SymS, Symbol Search; Coding, Coding; IT, Inspection Time; Pgb.dom, Pegboard (dominant hand condition); Pgb.non, Pegboard (non-dominant hand condition); Pgb.2, Pegboard (both hands condition).