Fig. 5From: Moving beyond the classic difference-in-differences model: a simulation study comparing statistical methods for estimating effectiveness of state-level policiesType I error rates for linear model specifications: (5a) the two-way fixed effects model, (5b), the detrended model, (5c) the AR model, and (5d) the GEE model. Horizontal line denotes the target Type I error rate value of 0.05Back to article page