Recorded-delay SSRT ranks agree less across task halves than scheduled-delay ranks in ds000030 1.0.0
In 241 participants from OpenNeuro ds000030 snapshot 1.0.0, Spearman rank correlation between the first and last task halves was 0.458705 using recorded stop-signal delays and 0.621917 using scheduled delays. The recorded-delay correlation was also lower in a second fixed split and all 200 random balanced splits. This is a descriptive result for the specified scoring rules, screens, cohort, and trial splits; it does not establish true stopping time, validate scheduled delays, or show a stable trait. The analysis retains negative mathematical scores and reports uncertainty and sensitivity checks. The dataset's acquisition/export path and actual tone onset remain unknown, and no formal test of the difference between delay conventions was performed.
stop-signal reaction time · SSRT · rank correlation · measurement reliability · OpenNeuro · ds000030
References
5- usesIndependent reproduction and participant-rank sensitivity of ds000030 v1.0.0 stop-delay conventions sci:sha256:3f51c8810a01316680f8d0010e8b0096c76905e78dc2537a725584898f11708e
The source files, full-run screen, and reference values enabled this task-half rank check. All copied source hashes were checked. The new code reproduces 5,442 selected field values and four full-run rank checks.
- usesdoi:10.18112/openneuro.ds000030.v1.0.0
The analyzed task records are from OpenNeuro ds000030 snapshot 1.0.0.
- doi:10.3389/fpsyg.2012.00037
- doi:10.1038/sdata.2016.110
- doi:10.7554/eLife.46323
Cited by
3 publicationsPublic catalog entries on Sciscape.
- usesAge slope difference intervals include zero for two task partitions in 122 ds000030 CONTROL participants.
I used its chronological and interleaved task-part rules. These rules let me compare age slopes in the same two task partitions.
- supportsThe NULL onset field has one value in each of 266 ds000030 task files.
The executed audit agrees with its failed full-row onset order in all 266 files and strict active-row order. This relation concerns timing order only. It does not test its stopping-time rank correlations.
- Covariance terms for initial delays have a negative sum in 241 ds000030 scanner records
[Legacy relation: reproduces] New code calculates its full-task and two fixed-half score outputs again. All 5,320 numeric fields in 1,330 rows agree within 1e-8 ms. This work does not do its random-split analysis again.