b******s
发帖数: 325 | 1 新手急需要帮助解释下REGRESSION COEFFICIENT.谢谢帮忙先！！！
Model:
Dependent var: Delta Y (which is the outcome change between baseline and a
follow-up measurement point)
Indepdent vars: baseline score category 1, baseline score category 2 (NOTE:
category 3 is the omitted category), plus a bunch of "state" dummies (VA, IN
, MD with MS as the ommited category) and a "treatment model" dummy (where 1
= diversion; 0, transition).
QUESTION 1:
So the constant is interpreted as "the average outcome change for population
in the baseline score category 3, in MS and and treated by transition."
And the summation of coefficients for "constant" and "baseline score
category 1" is interpreted as "the average outcome change for population in
the baseline score category 1, in MS and and treated by transition."
And the summation of coefficients for "constant" and "baseline score
category 1" and "VA" is interpreted as "the average outcome change for
population in the baseline score category 1, in VA and and treated by
transition."
Are the above three statements CORRECT?
QUESTION 2:
So let's say, for state VA, there is no data varition of the "treatment
model" so that all data has the value of "transition" for the variable "
treatment model".
How would that affect the interpreation of coefficients for VA? |
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