* Balance testing cd schuldt quietly include "schuldt.do" cd ../ * Mean comparisons and significance tests ** age tabstat PPAGE, by(gw) ttest PPAGE, by(gw) ** party identification tabstat PARTY7, by(gw) ttest PARTY7, by(gw) ** gender gen tmpgender = PPGENDER - 1 tabstat tmpgender, by(gw) prtest tmpgender, by(gw) ** education (years) tabstat PPEDUC, by(gw) ttest PPEDUC, by(gw) ** race/ethnicity tab PPETHM gw, col * graphical comparisons ** ssc install ciplot ciplot PPAGE, by(gw) ciplot PARTY7, by(gw) ciplot tmpgender, by(gw) binom ciplot PPEDUC, by(gw) * regress treatment condition on covariates reg gw c.PPAGE c.PARTY7 i.PPGENDER c.PPEDUC i.PPETHM