I run following regression for panel data of children: PPVT being a test score, a treatment they get and sex being =1 of male and =2 if female.
Code:
xtreg PPVT treatment##sex (control variables) , fe cluster(ID) --------------------------------------------------------------------------------------------- | Robust ppvtraw | Coef. Std. Err. t P>|t| [95% Conf. Interval] ----------------------------+---------------------------------------------------------------- 1.treatment | 5.594682 1.81707 3.08 0.002 2.031623 9.157742 | sex | female | 0 (omitted) | treatment#sex | 1#female | -8.300998 2.405033 -3.45 0.001 -13.01698 -3.585014 _cons | 80.75674 19.60288 4.12 0.000 42.31781 119.1957 ----------------------------+----------------------------------------------------------------
Can I read it like this:
1. males not getting treatment have an avg. score of 80.75
2. males getting treatment have an avg. score of 86.34 (80.75 + 5.59)
3. females getting treatment have an avg. score of 72.45 (80.75 - 8.30)
4. females not getting treatment have an avg. score of ??
or is it like this:
1. males not getting treatment have an avg. score of 80.75
2. males getting treatment have an avg. score of 86.34
3. females getting treated have an avg. score of 78.05 (80.75 + 5.59 - 8.30)
4. females not getting treatment have an avg. score of ??
Does the interaction coefficient say how much treatment changes the score for females or does it say how much the change differs from the male's change?
And how do I find the coefficient for being just a female without treatment?
Thank you so much for your help!
Best
Arto Arman
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