I used the code provided in the link below to calculate the LRT (LRT calculation code used by the DepMap portal · GitHub), but the results are not exactly the same as the results in the table you provided (https://depmap.org/portal/api/download/gene_dep_summary). For crispr, I choose the dataset named DependencyEnum.Chronos_Combined to mapping the results. The dataset I used for the calculation was CRISPRGeneEffect_Q4.csv.
May I ask if you have done anything else with the data? Thank you very much.