{
  "arms": [
    "original",
    "no_image",
    "occluded",
    "swapped",
    "conflict"
  ],
  "paired_by": "id",
  "swap_offset": 17,
  "visual_dependency_score": "mean(original-no_image, original-swapped, original-conflict accuracy)",
  "warning": "Score measures sensitivity, not human-like causal reasoning."
}