A repeated cross-sectional data set
A) is also referred to as panel data.
B) is a collection of cross-sectional data sets,where each cross-sectional data set corresponds to a different time period.
C) samples identical entities at least twice.
D) is typically used for estimating the following regression model Yit = β0 + β1Xit + β2W1,it + ...+ β1+ rWr,it + uit
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Q1: For quasi-experiments,
A)there is a particularly important potential
Q2: The following is not a threat to
Q10: The Hawthorne effect refers to
A)subjects dropping out
Q12: Experimental effects, such as the Hawthorne effect,
A)generally
Q12: To test for randomization when Xi is
Q15: In a quasi-experiment
A)quasi differences are used,i.e. ,instead
Q16: Causal effects that depend on the value
Q18: All of the following are reasons for
Q19: The following are reasons for studying randomized
Q20: Heterogeneous population
A)implies that heteroskedasticity-robust standard errors must
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