Table 10.

Contextual analysis results with the model in Figure 1, Study 2

	Age			Reference Constructs
Variable	Total	Unique	Simple	Gf	Mem	Speed	Voc	%Var
Connections
Same Seq.	−.56^*	−.04	--	.47^*	−.06	.43^*	−.14	61.7
Alternating Seq.	−.41^*	.14	.55^*	.58^*	−.06	−.09	−.11	69.0
Visual Search
Simple Target	−.38^*	.25	--	.12	.15	.67^*	−.22	47.3
Complex Target	−.43^*	.03	.40^*	.52^*	−.04	.06	−.07	62.3
Arithmetic
Number	−.28^*	.37^*	--	.25	−.06	.84^*	−.10	59.7
Alphabet	−.17^*	.20	.37^*	.34^*	−.02	.23	.08	60.3
Operation Span
Set Size 3	−.20^*	.11	--	.43^*	.13	−00	−.12	19.6
Set Size 7	−.35^*	−.13	.42^*	.38^*	.02	−.09	−00	48.7
Symmetry Span
Set Size 2	−.38^*	.12	--	.53^*	.06	.13	−.35^*	29.1
Set Size 5	−.51^*	−.20	.17^*	.46^*	−.14	.05	−.13	38.8
Reading Span
Set Size 3	−.19^*	−.01	--	.23	.16	.04	.06	18.7
Set Size 7	−.22^*	-0.16	.36^*	.28	−.04	−.09	.15	33.3
Word List¹
Trial 4	−.36^*	.27	--	.04	.92^*	.17	−.58^*	57.6
Trial 5	−.40^*	.05	.25	−.05	.67^*	.14	−.31	61.5
Matrix Monitoring
One Matrix	−.11	.10	--	.62^*	−.05	−.06	.07	30.4
Two Matrices	−.21^*	.13	.23^*	.52^*	−.01	.07	−.10	38.2
Color Counters
Two Counters	−.28^*	.13	--	.45^*	.19	.13	−.10	36.0
Three Counters	−.30^*	.02	.65^*	.27	−.04	.06	.01	69.4
Days of Week (seconds)
Forward	.22^*	.23	--	.04	−.03	−.07	−.11	6.5
Backward	.20^*	−.13	.28^*	−.26	.11	−.25	.06	21.0
Months of the Year (seconds)
Forward	.13	.06	--	.31	−.21	−.32	−.16	11.6
Backward	−.06	−.42^*	.03	−.19	−.08	−.35^*	.02	20.5

Note: p<.01. The values in the “Total” column are simple correlation coefficients and those in the other columns are standardized regression coefficients predicting the target variable from age and the reference constructs. The column labeled “Simple” contains the standardized regression coefficients for the path from the simple to the complex variable in Figure 1. The “%Var.” column contains the percentage of variance in the target variable accounted for by age and the four reference constructs.

The word recall measure was omitted from the reference memory construct for this analysis.