How the D-error value should be?

[sukunta]

Dear Prof. Michiel,
I run the syntax

Code: Select all

design
;alts=alt1*,alt2*,alt3
;rows=12
;eff=(mnl,d)
;con
;model:
U(alt1)=b0[0.000001]+b1.dummy[0.000002]*private[1,0]+b2.dummy[0.000002]*open[1,0]+b3[0.000002]*time[10,20,30]+b4.dummy[0.000002|0.000001]*channel[2,1,0]/
U(alt2)=b0[0.000001]+b1*private+b2*open+b3*time+b4*channel
$

and D-error = 0.219443. Is that suitable for the pilot study?
Sincerely yours,
Sukunta

[Michiel Bliemer]

Yes, any finite D-error (often below 1) should be fine, only D-errors that are Undefined or Infinite or very high (often above 1, 2, or 3) are suspicious and may indicate an issue in parameter identification.

D-errors are study specific, so there is no general rule on what a "good" D-error is.

Michiel

[sukunta]

Dear Prof.Michiel,

Thank you so much for your reply.

Sincerely yours,
Sukunta