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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Neurobiol Aging. 2009 Jun 25;32(6):1124–1137. doi: 10.1016/j.neurobiolaging.2009.05.015

Table 5.

Accuracy of working memory processing (3-back task): Summary of results.

Effect df F-ratio Partial η2 p-value
Between Subjects Error df = 142
Age 1 11.03 0.072 0.001
Age2 1 0.04 0.001 0.834
Sex 1 0.12 0.001 0.734
Pulse Pressure 1 0.28 0.002 0.590
comt 2 3.85 0.051 0.024
ace 2 1.74 0.024 0.180
ace × comt 4 0.57 0.016 0.684
Sex × comt 2 4.69 0.062 0.011
Within Subjects Error df = 142
Task 1 55.24 0.280 0.00000
Task × Age2 2 3.88 0.027 0.050
Task × ace × comt 4 2.19 0.058 0.074

Note. Non-significant interactions (p > 0.15) were removed from the models. One outlier was removed from the analyses (see text).