[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feKCsX8zAnoWHtVWv8YSVB9NbKDZsAQalcK8aoYbMOHs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-05-22 16:38:05",145329256,[8,9,10,11],"安全性","种后反应率","临床表现","保护率",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"57286916088c05b87f38ed2650919c0e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe0f30248f44cf699d47461d552269035.jpg","流行病学（继教8、9班）","work_35118523","流行病学练习12(第七章 实验流行病学研究-上)","评价人群疫苗接种效果最关键的指标是( )",[21,33,42,51,60,69,78,81,90,99],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-05-22 16:38:04",145329249,[26,27,28,29],"标准对照","空白对照","安慰剂对照","自身对照","某研究者拟在某社区观察某保健品预防冠心病的作用,试验组用该保健品,对照组用无任何作用的糖丸,这种对照属于","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],145329250,[37,38,39,40],"根据实验者需要随意将研究对象分为实验组及对照组","根据被研究者意愿,分为实验组及对照组","研究对象被分为实验组及对照组的概率相等","研究对象被分为实验组的概率应大于分为对照组的概率","实验流行病学研究中研究对象的分组应是( )",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],145329251,[46,47,48,49],"研究者主观因素对结果的影响","被研究者主观因素对结果的影响","研究者及被观察者双方主观因素对结果的影响","资料分析者主观因素对结果的影响","实验流行病学研究中所使用的单盲法是为了避免以下哪一种因素对判断结果的影响( )",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],145329253,[55,56,57,58],"设立对照的原则","随机化的原则","分层的原则","盲法原则","下列哪项不是实验流行病学设计的原则( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":31,"type":32},[],145329254,[64,65,66,67],""自然试验"与观察性试验","现场试验","社区试验","临床试验","下列哪项试验不属于实验流行病学研究( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":31,"type":32},[],145329255,[73,74,75,76],"研究对象是来自一个总体的抽样人群并随机化分组","有平行可比的对照组","对各种危险因素的分析和评价","对实验组人为地施加干预措施","下列哪项试验不是实验流行病学研究的特点( )",{"answer":79,"createTime":5,"id":6,"options":80,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":82,"createTime":5,"id":83,"options":84,"question":89,"source":31,"type":32},[],145329257,[85,86,87,88],"筛查早期患者","分析危险因素暴露的结局","探讨病因的线索","评价某种干预措施的效果","下列哪项属于实验流行病学研究( )",{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":31,"type":32},[],145329258,[94,95,96,97],"随机化分组可提高实验组和对照组的可比性","可以提高评价预防及治疗等方面干预措施的正确性","盲法试验可提高研究对象的依从性","实验者可决定干预措施的方案","实验流行病学研究最重要的目的和它的优点是( )",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":31,"type":32},[],145329259,[103,104,105,106],"设计严格、实施困难、随访观察花费太大","盲法不易实施、随访时间长、研究人群依从性差","有随机分组很难控制偏倚","易引起医德和伦理学的争议","实验流行病学研究中下列哪条不是其缺点( )"]