Table 3

Sources of variation in cardiac performance. ANOVA models were run using Family, Environment and Family by Environment interaction as the modelled sources of variation. Critical F values for the given degrees of freedom (DF) and the calculated F values are given for Heart Rate, End Systolic Volume (ESV), End Diastolic Volume (EDV), Stroke Volume (SV), and Cardiac Output (CO). Significant F values (p < 0.05) are in bold face and asterisks represent highly significant (p < 0.005) p values.
Source
 DF
 F value




Critical
 Heart Rate
 ESV
 EDV
 SV
 CO
Family
 4
 2.63
 8.93*
 7.23*
 10.27*
 5.96*
 4.37*
Environment
 1
 3.73
 29.42*
 6.28
 0.88
 0.12
 0.26
Family × Environment
 4
 2.63
 7.47*
 3.16
 5.54*
 4.94*
 5.42*
Error
 38





Moore et al. Frontiers in Zoology 2006 3:4   doi:10.1186/1742-9994-3-4