Table 2.

Hierarchical Regression Analysis Predicting Motion Sickness Scores from Preejection Period, Respiratory Sinus Arrhythmia, and Somatization

Variable	β	pr	sr	r	t
Set 1
Baseline PEP	−.20	−.20	−.20	−.19	−1.28
Baseline RSA	.10	.10	.10	.08	0.66
Set 2
Task PEP	.13	.04	.04	−.18	−0.31
Task RSA	−.76	−.37	−.32	−.15	−2.41*
Somatization	.38	.39	.34	.51	2.56*

Note: PEP = Preejection Period; RSA = Respiratory Sinus Arrhythmia.

Set 1 R² = .05; Set 2 ΔR² = .32.

^*p < .05.