Using ladder times for zero stop delays reduced integration estimates of stopping time in ds000030 version 1.0.0

We audited all 533 stop signal event files in ds000030 version 1.0.0. On 941 stop trials, recorded delay was zero and ladder time was positive. Every such trial had a response before ladder time. Using ladder time on these trials reduced the mean integration estimate by 33.30 ms in 241 screened scan participants. The 95% bootstrap interval was 28.36 to 38.55 ms. The reduction was 16.86 ms in 254 screened training participants. The replacement assumes that ladder time is the appropriate delay for these trials. The files do not prove actual signal timing. An independent calculation verified all 532 finite estimates. The package contains source tables, hashes, code, tests, results, and reproduction instructions.

stop signal task · stop signal reaction time · stop signal delay · integration method · ladder time · data audit · reproducibility