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Table 1 Fixed-effect analysis of variance for prevalence of infection with parasite source, host source, and parasite dose as factors. R-squared for the model was 0.92.

From: Immune response to sympatric and allopatric parasites in a snail-trematode interaction

Source s.s. d.f. m.s. F P
Parasite source 0.002 1 0.002 2.45 0.125
Host source 0.001 1 0.001 0.96 0.333
Dose 0.133 1 0.133 136.08 <0.001
Parasite * Host 0.210 1 0.210 213.66 <0.001
Parasite * Dose <0.001 1 <0.001 0.12 0.727
Host * Dose <0.001 1 <0.001 0.24 0.629
Parasite * Host * Dose 0.118 1 0.118 120.09 <0.001
Error 0.039 40 0.001   
Total 0.782 48