TABLE 6.

Results of Pearson r and partial correlation analyses performed separately for data obtained in the two stance conditions

Normal Stance: Pearson r	SpeechRec	Effort	CoPQ	CoPlisten	Cost
SpeechRec	—	−0.25	−0.51*	−0.61*	−0.19
Effort		—	0.21	0.38†	0.38†
CoPQ			—	0.81*	−0.17
CoPlisten					0.35
Cost					—
Normal Stance: Partial Correlation Controlling for beHFPTA	Age	SpeechRec	CoPQ	CoPlisten	Cost
Age	—	0.10	0.15	−0.17	−0.47†
SpeechRec		—	−0.39†	−0.49*	−0.08
CoPQ			—	0.77*	−0.31
CoPlisten				—	0.27
Cost					—
Normal Stance: Partial Correlation Controlling for Age	beHFPTA	SpeechRec	CoPQ	CoPlisten	Cost
beHFPTA	—	−0.38	0.15	0.43†	0.51*
SpeechRec		—	−0.43†	−0.58*	0.25
CoPQ			—	0.79*	−0.15
CoPlisten				—	0.39†
Cost					—
Tandem Stance: Pearson r	SpeechRec	Effort	CoPQ	CoPlisten	Cost
SpeechRec	—	−0.34	0.02	−0.42†	−0.41†
Effort		—	−0.19	0.14	0.23
CoPQ			—	0.46†	−0.64*
CoPlisten					0.11
Cost					—
Tandem Stance: Partial Correlation Controlling for beHFPTA	Age	SpeechRec	CoPQ	CoPlisten	Cost
Age	—	−0.16	0.10	−0.02	−0.17
SpeechRec		—	0.08	−0.34	−0.38
CoPQ			—	0.46†	−0.67*
CoPlisten				—	0.05
Cost					—
Tandem Stance: Partial Correlation Controlling for Age	beHFPTA	SpeechRec	CoPQ	CoPlisten	Cost
beHFPTA	—	−0.04	−0.01	0.32	0.23
SpeechRec		—	0.10	−0.34	−0.42†
CoPQ			—	0.44†	−0.65*
CoPlisten				—	0.11
Cost					—

Data for speech recognition (SpeechRec), effort ratings (Effort), postural control in dual-task conditions (CoPlisten), and dual-task costs (Cost) were averaged across masker type, spatial condition, and SNR.

^*Significant at the 0.01 level.

^†Significant at the 0.05 level.

beHFPTA, better-ear high-frequency pure-tone average; CoPQ, postural control in the baseline condition.