{
  "study": "status_quo",
  "selection": "Post-hoc positive direction at 100 synthetic answers",
  "synthetic": true,
  "human_n": 0,
  "conditions": [
    {
      "name": "new",
      "questions": [
        {
          "id": "q1",
          "type": "single_choice",
          "text": "你第一次选择手机流量套餐，A和B都满足你的基本需求。你选哪个？",
          "options": [
            "A：月费79元，每月60GB",
            "B：月费89元，每月75GB"
          ],
          "required": true
        }
      ]
    },
    {
      "name": "current",
      "questions": [
        {
          "id": "q1",
          "type": "single_choice",
          "text": "你正在使用A手机流量套餐，切换套餐无需手续费。A和B都满足你的基本需求。你选哪个？",
          "options": [
            "A：月费79元，每月60GB",
            "B：月费89元，每月75GB"
          ],
          "required": true
        }
      ]
    }
  ],
  "index_coding": "Choice values use one-based option order; open numeric answers stay numeric"
}