balance_checks          Calculate balance checks in staggered rollout
                        designs
compute_Betastar        Plug-in efficient Beta hat
compute_Xhat            Compute Xhat of pre-treatment differences
compute_balance_test    Wald-test if Xhat is statistically different
                        from zero
compute_g_level_summaries
                        Calculate group level summary statistics
create_A0_list          create_A0_list
pj_officer_level_balanced
                        Procedural Justice Training Program in the
                        Chicago Police Department
staggered               Calculate the efficient adjusted estimator in
                        staggered rollout designs
staggered_cs            Calculate the Callaway & Sant'Anna (2021)
                        estimator for staggered rollouts
staggered_sa            Calculate the Sun & Abraham (2020) estimator
                        for staggered rollouts
