Hi all,
I have a multinomial regression comparing boys and girls on a 4 point Likert response to the question “I do well in reading” (this is for a course example). Typically, in multinomial regression , the coefficient gives me the difference between boys and girls on the comparison between, say the first response and the last response. Here I am getting all of the regression coefficients, and I am not sure what they mean.
Also does anyone out there know how to code up posterior predictive checks for multinomial regression such as the code I have above? Thanks!
Thanks. David
mean se_mean sd 2.5% 25% 50% 75% 97.5% n_eff
beta[1,1] 0.41 0.17 2.34 -4.32 -0.98 0.49 1.91 4.87 180
beta[1,2] 0.27 0.17 2.35 -4.38 -1.07 0.31 1.76 4.91 181
beta[1,3] -0.07 0.17 2.34 -4.67 -1.46 -0.03 1.44 4.47 181
beta[1,4] -0.05 0.17 2.33 -4.67 -1.38 -0.05 1.50 4.51 183
beta[2,1] 0.46 0.24 2.52 -4.56 -1.11 0.66 2.20 5.27 107
beta[2,2] -0.06 0.24 2.52 -5.19 -1.73 0.19 1.74 4.82 107
beta[2,3] -0.32 0.24 2.50 -5.39 -1.95 -0.09 1.34 4.36 106
beta[2,4] -0.24 0.24 2.54 -5.28 -1.78 -0.01 1.55 4.68 109
Rhat
beta[1,1] 0.99
beta[1,2] 0.99
beta[1,3] 0.99
beta[1,4] 0.99
beta[2,1] 1.00
beta[2,2] 1.00
beta[2,3] 1.00
beta[2,4] 1.00