{
  "id": "S130",
  "type": "单选题",
  "type_code": "single",
  "stem": "市场实验中测试的交互效应会影响实验的（）。",
  "stem_text": "市场实验中测试的交互效应会影响实验的（）。",
  "options": [
    {
      "key": "A",
      "text": "内部有效性"
    },
    {
      "key": "B",
      "text": "外部有效性"
    },
    {
      "key": "C",
      "text": "回归效应"
    },
    {
      "key": "D",
      "text": "主效应"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "内部有效性"
    },
    {
      "key": "B",
      "text": "外部有效性"
    },
    {
      "key": "C",
      "text": "回归效应"
    },
    {
      "key": "D",
      "text": "主效应"
    }
  ],
  "answer_keys": [
    "B"
  ],
  "answer_display": "B",
  "answer_texts": [
    "外部有效性"
  ],
  "sources": [
    {
      "edition": "第14届",
      "edition_num": 14,
      "no": 12,
      "uid": "14-012",
      "file": "第14届市调大赛本科组模拟题(9).docx"
    }
  ],
  "source_display": "第14届 第12题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S130.html"
}