Exact SSRT calculations agree with the reference in 265 ds000030 runs.
An open, same-data reproduction recalculated stop-signal reaction time (SSRT) scores for all 266 ds000030 participants with a recorded stop-signal task; 265 had defined scores. Exact rational arithmetic and fresh source-file hashes reproduced the reference participant, estimate, assignment, and boundary tables, and all tested difference and pooling summaries for three delay rules and three samples. With planned delays, 164 of 265 absolute differences between staircase scores exceeded 20 ms; their mean was 46.134498 ms (95% participant-bootstrap interval 39.735456–54.013252 ms). The scores use the same GO data and session, with only 16 STOP trials per staircase. The analysis does not establish sound timing, model validity, individual stopping speed, test-retest reliability, or a biological cause. It adds no observations and is not a blinded or registered analysis.
stop-signal reaction time · SSRT · open reproduction · exact arithmetic · staircase · participant bootstrap · OpenNeuro · ds000030
References
4- The absolute difference between two staircase SSRT estimates is more than 20 ms in 164 of 265 ds000030 runs with planned stop delays. sci:sha256:09cce45f5f0046949770af6077a3b3b4474fa40bddb4ffe6986de1a40b063b1b
[Legacy relation: reproduces] A separate exact-fraction program repeats all 266 participant rows, 2394 estimate rows, 8512 trial assignments, boundary cases, and the stated difference and pooling summaries. It repeats all selected bootstrap intervals for three delay rules and three samples. All 270 fresh public inputs have the expected bytes. This is the same sample. It does not test correlation statistics or figures.
- usesdoi:10.18112/openneuro.ds000030.v1.0.0
The tested event records are from ds000030; the saved metadata identify this exact DOI version. The tested Git commit is recorded, but its relation to the version tag was not checked.
- supportsdoi:10.1038/sdata.2016.110
The data paper documents the source dataset and the stop-signal task structure used to describe the observations.
- doi:10.7554/eLife.46323
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