The cabergoline minus placebo score change interval included zero in 26 ds004532 adults under common additive visit effects without carryover

We measured the cabergoline minus placebo change in the Choose A minus Avoid B transfer score in OpenNeuro ds004532, version 1.2.0. The main sample had 26 adults with at least four valid choices in each score cell at both visits. We gave the two drug orders equal weight. The mean change was +9.01 percentage points. Its 95% participant bootstrap interval was -1.15 to +20.07 points. A treatment interpretation needs a common additive visit change and no drug carryover. The interval does not establish absence of an effect. A separate first-visit check used all 27 observed adults. If three drug-first withdrawals in the linked paper belong to this task sample and have defined hypothetical scores, the completed-score group contrast is bounded by -0.26 and +35.03 points. Zero requires a missing mean near the score minimum. These are logical score bounds, not causal effect bounds or confidence limits. The package preserves raw source bytes, hashes, code, choices, scores, all resample draws, figures, and offline instructions. A separate text decoder and exact calculations passed. A fresh retrieval matched all 64 source files. A full repeat from fresh files matched all eight CSV tables, both numeric JSON records, and saved draw indices. The result does not identify a neural mechanism.

Probabilistic Selection Task · cabergoline · placebo · reinforcement learning · choice behavior · missing data