{
  "nature": "original fictional teaching case",
  "definition": "Eligible objects completing the specified action within each complete observation period",
  "periods": [
    {
      "id": "before",
      "numerator": 40,
      "denominator": 200
    },
    {
      "id": "after",
      "numerator": 63,
      "denominator": 210
    }
  ],
  "expected": {
    "beforeRate": 0.2,
    "afterRate": 0.3,
    "percentagePointChange": 10,
    "relativeRateChange": 0.5,
    "relativeCountChange": 0.575
  },
  "sameEligibilityAndActionDefinition": true,
  "compositionComparability": "not verified",
  "causalEffect": "not established"
}