在小样本研究中，尽管采用了随机法，但两组间偏倚还是很容易发生的。
In studies with small sample sizes, imbalances between the two groups can easily occur despite randomisation .
结果手术切口感染率在动态消毒法中为0.06%，在静态消毒法中为0.48%，两组间差异具有统计学意义（P<0.01）。
Results The wound infection rate was only 0.06% in dynamic group while 0.48% in static group. The parameters showed a significant difference(P<0.01).
美英日三国药典规定使用的大鼠卵巢增重法组内组间变异系数最小，测定结果可靠性最大；
The method measuring the ovary weight of tat for detecting the bioactivity of HCG results lower variation coefficient and greater reliability.
两组间结果比较采用t检验及协方差分析法进行分析。
The results were compared and analyzed with the t test and analysis of covariance between the two groups.
调查内容包括研究对象选择、随机化方法、盲法、组间可比性、样本大小、依从性、统计学处理、疗效评价指标、随访和不良事件观察等。
The subject choice, randomized method, blind method, intra-group comparison, sample, compliance, statistical method, therapeutic effect assessment index, survey and side effects were observed.
以埕岛油田馆陶组上段层间河流相储层为研究对象，采用地质统计方法和劳伦兹系数法分析了馆陶组上段层间和平面的非均质性。
The heterogeneity of interlayer and plane of fluvial reservoir in upper Ng of Chengdao Oilfield was analyzed with the geostatistics and the Lorentz coefficient method.
拆方研究包括单味药研究法、药对研究法、药物组间关系研究法、撤药研究法、正交设计法、聚类分析法、均匀设计法、析因分析法等方法。
The latter includes study of single ingredient, study of functional ingredient group, orthogonal design, clustering analysis, homogeneous design, factorial analysis and so on.
用成对样本t检验法比较同一无性系内两种外植体的差异用成组样本t检验法比较两组无性系间的差异。
Paired sample t test method was used to compare the difference between the two explants of the same trees. Independent sample t test method was used to determine the difference between the two groups.
色谱分离法因其高度的选择性而著称，可以用来在理化性质非常相近组份间实现分离过程。
Chromatographic methods of separation are distinguished by their high selectivity, that is their ability to achieve separation between components of closely similar physical and chemical properties.
方法：夹心酶联免疫吸附法（ELISA法）检测16例MDS患者血清IL-8，并与正常对照组比较及MDS亚型间比较。
Method: 16 patients with MDS and 45 cases of control were subject to the measurement of serum IL-8 levels by sandwich enzyme linked immunosorbent assay (ELISA).
方法：夹心酶联免疫吸附法（ELISA法）检测16例MDS患者血清IL-8，并与正常对照组比较及MDS亚型间比较。
Method: 16 patients with MDS and 45 cases of control were subject to the measurement of serum IL-8 levels by sandwich enzyme linked immunosorbent assay (ELISA).
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