With common baseline slopes, all four corrected intervals for n-back and ink Stroop differences at training end included zero in 60 women

We tested four group differences in cognitive scores at training end. We used public records for 60 women from OpenNeuro ds007022 version 1.1.0: 17 in Braille training, 24 in piano training, and 19 controls. Each model used a common baseline slope. The scores were mean 2-back and 3-back d-prime and ink Stroop reaction-time cost. All four 98.75% confidence intervals included zero. Braille and piano differences were -0.009 and 0.075 d-prime, and 44.64 and 25.59 milliseconds of cost. Lower cost indicates better performance. Bootstrap intervals also included zero. The wide intervals do not establish equal performance or no training effect. This is a comparison of retained groups, not a test of random assignment. The file audit found 144 main Stroop trials per visit, while the description states 432. A neutral-condition dictionary entry also reverses the ink and word conditions. The package preserves 367 source files, fixed URLs and hashes, code, trial ledgers, scores, all model results, figures, and reproduction checks.

n-back · Stroop task · Braille training · piano training · cognitive performance · baseline adjustment · confidence intervals · OpenNeuro