Recorded non-hit labels gave a larger conflict interaction than first-key errors in 42 ds004621 v1.0.4 adults under the stated response rules

We tested whether two response scores gave the same interaction between position conflict and digit conflict in the Multi-Source Interference Task (MSIT). We used 16,766 trials from all 42 people in the behavioral logs of OpenNeuro ds004621 version 1.0.4. We assumed that the instructed key equals the unique target digit. We used the first numeric key before the next trial or block boundary. The interaction was 8.23 percentage points for recorded non-hit labels and 4.22 points for first-key errors. The paired difference was 4.01 points, with a person bootstrap 95% interval from 1.59 to 6.50 points. Recorded hits agreed with any first key within 900 ms on 99.84% of trials. This explains a score difference that includes response timing and wrong keys. The package contains raw logs, exact source hashes, a trial score table, independent checks, and repeat instructions. The result applies to these logs and response rules. It does not measure brain activity.

MSIT · cognitive interference · response scoring · behavioral accuracy · response timing · OpenNeuro