Hello there,
I am trying to set up a syntax using the following code;
Design
;alts = alt1, alt2
;rows = 12
;eff = (mnl,d)
;model:
U(alt1) = B1.effects[0.003|0.004] * A[50,100,150] + B2.effects[0.003|0.004]*B[50,100,150] + B3[-0.025] * C[5,15,25]/
U(alt2) = B1 * A + B2 * B + B3 * C $
I just added the effects coding but i'm experiencing an inconvenience. Without the effect coding the number of respondents needed lies around 10-20. But with the effect coding this number rises to 600.000-800.000.
I dont understand why the number of respondents rises this hard.
Also any comment on the design is welcome ofcourse. This syntax will be the basis for a new study for Vehicle to Grid addaptation (drafting electricity from electric cars back to the network). unfortunately priors for A and B and the values of A and B are the same. I dont know if this is the reason why i need so many respondents?
Greetings Chris