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Table 1 Analysis of variance for the productivity of replicate male-female pairs.

From: An experimental test for indirect benefits in Drosophila melanogaster

Source of variation df SS F P
treatment 1 14,088,222 2.16 0.142
age 1 59,503,879 9.12 0.003
interaction 1 10,970,819 1.68 0.195
error 726 4,736,707,541   
  1. Sources of variation include the effects of treatment (stud vs. dud ancestry), individual age (three vs. 15 days post-emergence), and their interaction. Productivity is a composite measure that includes the fecundity and fertility of the parents, and the subsequent viability to emergence of their offspring. Productivity values were squared prior to analysis.