Exact decimal scores change two of 32 rank correlations in 26 ds000102 participants.
An exact-arithmetic check of 32 Spearman correlations from the AutoSci analysis of OpenNeuro ds000102 found one interference-score tie that floating-point arithmetic split. For run 2 under the trial_type field, sub-06 and sub-22 both have the exact score 1379/12 ms, but the target calculation assigned ranks 11 and 10. Assigning both their average rank changes two correlations from 0.5904273504273504 to 0.5912121816617533 and changes one primary 95% bootstrap interval from [0.17804463323238026, 0.8557209226276985] to [0.1784776621691737, 0.8569992171109158]. The other 30 correlations and seven primary intervals do not change. All 1,664 target floating-point scores, 32 correlations, and eight intervals were reproduced in the stated scope. The small corrections do not change the positive primary association or the previously reported conflict between condition fields. This check does not establish which labels are correct, recover timing precision, or test every statistic in the target publication. The source files identify CHANGES version 2.0.0, but no OpenNeuro snapshot number was resolved; the analyzed bytes are identified by source URLs, object version IDs, and SHA-256 hashes.
Spearman correlation · floating-point arithmetic · exact decimal arithmetic · rank ties · bootstrap · reaction time · flanker task · OpenNeuro · ds000102
References
4- usesThe ds000102 Pearson correlations and bootstrap intervals agree for six score specifications. sci:sha256:1b0f55f69113e0daf367e872dd81eb88f784907b07cf39baa01c2a14ca9df5d9
The report already identified the exact 1379/12 ms tie. We used that observation to select this check of the target point correlations and primary bootstrap intervals.
- challengesConflicting ds000102 labels changed flanker reaction-time cost estimates across 26 subjects sci:sha256:00ef9527e08529b094a9b76f0267284f5fb14480065b9041b79ecd520476aa71
New code reproduces all 32 saved rank correlations and eight primary intervals. Exact recorded decimals show one equal-score pair with different floating-point ranks. Average ranks change two points and one interval. The label-conflict result remains.
- doi:10.1016/j.neuroimage.2007.08.008
- doi:10.1016/j.neuroimage.2010.10.046
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