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. Author manuscript; available in PMC: 2015 Sep 4.
Published in final edited form as: Psychol Aging. 2009 Jun;24(2):274–286. doi: 10.1037/a0016067

Table 2.

Task Main Effects on Cardiovascular Reactivity

Measure Disagreement Mean (SE) Collaboration Mean (SE) F eta-squared
Task Period Reactivity
SBP (mm Hg) 9.3 (.40) 4.5 (.35) 119.81** .297
DBP (mmHg) 5.6 (.21) 3.4 (.19) 77.04** .213
CO (l/min) .34 (.04) −.09 (.05) 50.56** .210
TPR 12.5 (16.0) 73.8 (16.8) 8.98** .047
HR (bpm) 2.5 (.15) 3.7 (.17) 43.93** .134
PEP (msec) −1.89 (.58) −.29 (.59) 5.35* .027
RSA .016 (.03) −.144 (.04) 16.16** .074
Recovery Period
SBP (mm Hg) 5.2 (.36) 4.2 (.37) 4.67* .016

SBP = systolic blood pressure; DBP = diastolic blood pressure; CO = cardiac output; TPR = total peripheral resistance; HR = heart rate; PEP = pre-ejection period; RSA = respiratory sinus arrhythmia

*

p<.05,

**

p<.001, degrees of freedom range from 1 and 284 to 1 and 181

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