Variable

Parameter

Estimation

Standard error

p value

$\psi$

$1-\psi$

(%)

Deviance (p value)

Intercept

β₀

7.5339

0.1543

<0.0001

0.1822

Treatment

β₁

−0.1842

0.0226

<0.0001

0.8317

16.82

Species

β₂

0.1284

0.1537

0.4040

1.1370

Dispersion

$\varphi$

3.0790

0.6130