{
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  "protocol": "split-sequential-full-horizon",
  "generated_at": "2026-09-25T19:21:19+09:00",
  "checkpoint_selection": "last-per-split",
  "units": "success rates are fractions in [0, 1]; NBT is a signed difference",
  "indexing": "stage_index, split_index, and task positions are zero-based",
  "definitions": {
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    "fwt": "mean acquisition success over all visits; endpoint proxy, not learning-curve FWT",
    "nbt": "mean over visits of mean acquisition minus same-task success at ALL later checkpoints, including revisits; last visit contributes zero; negatives retained",
    "normalized_nbt": "mean defined visit NBT/acquisition ratios; zero-acquisition and final visits excluded",
    "final_policy_sr": "mean task success evaluated at the single final checkpoint"
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  "discovered_sequences": 4,
  "incomplete_sequences": [],
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