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2. Discuss regression-discontinuity analysis in terms of regression. yi= 0 +1xi +2zi +ei Where: yi=Outcome score for the ith unit 0=Coefficient for the intercept 1=Pretest
2. Discuss regression-discontinuity analysis in terms of regression.
yi= 0 +1xi +2zi +ei
Where:
yi=Outcome score for the ith unit
0=Coefficient for the intercept
1=Pretest coefficient
xi=Covariate
2=Mean difference for treatment
zi=Dummy variable for treatment
(0=control,1=treatment)
ei=Residual for the ith unit
Regression model for the ANCOVA.
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