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Table 7 Contrast coefficients for the three planned comparisons

From: Statistics review 9: One-way analysis of variance

 

Coefficients for orthogonal contrasts

Infection

Contrast 1

Contrast 2

Contrast 3

1 (no infection)

3

0

0

2

-1

0

2

3

-1

1

-1

4

-1

-1

-1