Fortunately, the difference-in-differences estimate of a treatment effect also can be reported/interpreted as:
A) a simple difference in mean outcomes.
B) the coefficient on an interaction term.
C) the ratio of t-stats.
D) the second stage estimates of two-stage least squares.

Question

Quizplus · Accepted Answer

The difference-in-differences estimate of a treatment effect can also be reported/interpreted as the coefficient on an interaction term in a regression model.

Fortunately, the Difference-In-Differences Estimate of a Treatment Effect Also Can