Table 3.

Bivariate Correlations: Cognitive Predictors of Gait Speed in Single- and Dual-Task Conditions

	Gait Speed: NW		Gait Speed: WWC		Serial 7		Serial 7 WWC		RBANS
	r	p	r	p	r	p	r	p	r	p
Flanker task variables
Processing speed	−.163	.013	−.142	.030	−.198	.002	−.092	.163	−.316	<.001
Flanker effect	−.159	.015	−.152	.020	−.149	.023	−.106	0.107	−.107	.103
Flanker COV	−.189	.004	−.242	<.001	−.222	.001	−.091	0.165	−.275	<.001

Notes: Flanker COV = coefficient of variation of the Flanker task using all valid trials; Flanker effect = conflict resolution defined as the difference between congruent vs incongruent trials; Flanker overall RT = average reaction time based on all valid trials; NW = normal pace walk; p = p value; r = Pearson correlation; RBANS = Repeatable Battery for the Assessment of Neuropsychological Status; Serial 7 = percent of correct responses on the Serial 7 subtraction task when performed as a single task; Serial 7 WWC = percent of correct responses on the Serial 7 subtraction task when performed while walking; WWC = walking while counting.