[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhknZb0MYDU507P39r1BiYCtYDuc0Zay59j4_qe9AKCs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":16,"related":17,"source":28,"type":38},[],"2023-05-08 01:28:15",35233248,[8,9],"对","错",{"courseId":11,"courseImg":12,"courseName":13,"workId":14,"workName":15},"1000008140","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6893af0a90560f81454b9648316dd40b.jpg","医学统计学（山西医科大学）","16214197","第二章单元测试","实验研究中要抓住所有的非处理因素才能保证研究结果的科学性",[18,30,35,39,49,59,64,69,74,79],{"answer":19,"createTime":5,"id":20,"options":21,"question":27,"source":28,"type":29},[],35233120,[22,23,24,25,26],"实验对照","标准对照","安慰剂对照","空白对照","潜在对照","为研究新药&quot;胃灵丹&quot;治疗胃病(胃炎、胃溃疡)疗效,在某医院选择50例胃溃疡病人,随机分成实验组和对照组,实验组服用胃灵丹治疗,对照组用公认有效的&quot;胃舒冲剂&quot;.这种对照在实验设计中称为____","v2",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":34,"source":28,"type":29},[],35233130,[25,24,23,22,26],"研究某新药降低颅内压的效果,选用10名颅内出血的患者在传统治疗的基础上加该新药的治疗方法,另外10名患者只用传统的治疗方法,该实验设计选择的对照为______",{"answer":36,"createTime":5,"id":6,"options":37,"question":16,"source":28,"type":38},[],[8,9],3,{"answer":40,"createTime":5,"id":41,"options":42,"question":48,"source":28,"type":29},[],35233250,[43,44,45,46,47],"非处理因素是均衡的","非处理因素是不均衡的","样本例数相同","处理因素不均衡","处理因素均衡","配对设计中,两组间的___, 因此该设计有可能提高检验的效能",{"answer":50,"createTime":5,"id":51,"options":52,"question":58,"source":28,"type":29},[],35233328,[53,54,55,56,57],"统计描述、统计推断和统计分析","尽量减少或抵消处理因素的影响","收集、整理和分析资料","严格控制受试对象数量","对照、随机化和重复","实验设计的具备原则,主要有_____",{"answer":60,"createTime":5,"id":61,"options":62,"question":63,"source":28,"type":38},[],35233635,[8,9],"实验研究是根据研究目的将同质的研究对象随机分组,分别给予不同的干预或处理,在合理控制非处理因素条件下,比较不同干预或处理的实验效应的一种研究方法.属于研究对象随机分组的被动性研究",{"answer":65,"createTime":5,"id":66,"options":67,"question":68,"source":28,"type":38},[],35233639,[8,9],"以人作为受试对象的试验研究,要求有伦理委员会的批准,但不一定全部需要受试对象签署知情同意书",{"answer":70,"createTime":5,"id":71,"options":72,"question":73,"source":28,"type":38},[],35233664,[8,9],"随机区组设计要求区组内受试对象个数与处理因素的水平数相同,若同一区组内有数据缺失,该区组的其它数据就无法利用,因此需要重新补做该缺失数据的实验",{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":28,"type":38},[],35233685,[8,9],"一般而言,完全随机设计就可以达到组间均衡的目的",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":28,"type":38},[],35233694,[8,9],"临床试验中我们常以单、双日就诊的患者进行随机化化分组,因为患者哪天就诊是随机的"]