. Author manuscript; available in PMC: 2020 Jul 1.

Published in final edited form as: Exp Aging Res. 2019 Jun 20;45(4):306–330. doi: 10.1080/0361073X.2019.1627492

Table 5.

ANT accuracy: Summary of multiple regression analysis

	ANT Accuracy
	B	SE B	Beta	t	p
STEP 1	EXECUTIVE FUNCTIONS
	R² = .252, Adj R² = .228, F(8,255) = 10.720 (p < .001)
(Intercept)	88.826	0.479		185.412	< .001
Age (centered)	−0.061	0.048	−0.077	−1.274	.204
Education (centered)	0.300	0.184	0.096	1.627	.105
Gender (female)	−1.692	0.684	−0.138	−2.474	.014
Speed	−0.168	0.518	−0.022	−0.325	.746
Working memory	0.858	0.505	0.109	1.700	.090
Shifting	2.338	0.507	0.318	4.611	< .001
Fluency	0.713	0.542	0.094	1.315	.190
Inhibition	0.518	0.478	0.061	1.084	.280
STEP 2	INTERACTIONS: AGE & EXECUTIVE FUNCTIONS
	R² = .259, Adj R² = .227, R² change = .007, F(11,252) = 8.010 (p < .001), F change = 0.838 (p = .474)
(Intercept)	88.745	0.490		181.172	< .001
Age (centered)	−0.056	0.049	−0.072	−1.156	.249
Education (centered)	0.314	0.185	0.101	1.692	.092
Gender (female)	−1.740	0.686	−0.142	−2.534	.012
Speed	−0.213	0.528	−0.028	−0.405	.686
Working memory	0.878	0.506	0.111	1.734	.084
Shifting	2.491	0.524	0.339	4.754	< .001
Fluency	0.717	0.543	0.094	1.322	.188
Inhibition	0.657	0.490	0.077	1.342	.181
Age*Shifting	−0.055	0.060	−0.018	−0.924	.356
Age*Fluency	0.049	0.063	0.004	0.775	.439
Age*Inhibition	−0.090	0.066	−0.012	−1.381	.169
STEP 3	SIGNIFICANT PREDICTORS
	R² = .199, Adj R² = .193, F(2,261) = 32.418 (p < .001)
(Intercept)	88.760	0.486		182.668	< .001
Gender (female)	−1.560	0.688	−0.127	−2.266	.024
Shifting	3.291	0.412	0.447	7.980	< .001

B = unstandardized regression coefficient, Beta = standardized regression coefficient

NOTE: Variables with p-values > .05 were dropped from Step 2 to Step 3.