A. To make the experiment more interesting B. To compare with the experimental group C. To confuse the researchers D. To waste time 相关知识点: 试题来源: 解析 B。解析:在科学研究中,经常使用对照组。对照组的目的是与实验组进行比较。通过比较对照组和实验组的结果,可以确定实验变量的影响。反馈...
A. prove that the hypothesis is correct. B. compare with the experimental group. C. confuse the results. D. be ignored. 相关知识点: 试题来源: 解析 B。解析:对照组在科学研究中用于与实验组进行比较。不是用来证明假设正确;不是为了混淆结果;也不能被忽略。反馈...
A. make the experiment more difficult B. compare with the experimental group C. have fun D. waste resources 相关知识点: 试题来源: 解析 B。在学术研究中,对照组用于与实验组进行比较。选项 A,不是为了使实验更困难;选项 C,不是为了好玩;选项 D,不是为了浪费资源。反馈...
In scientific research, what is the purpose of a control group? A. To provide a baseline for comparison B. To test an alternative hypothesis C. To increase the number of participants D. To confirm the results of previous studies 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
How much is the Impact Factor of Journal of Advanced Research in Dynamical and Control Systems? Reply MMelanie Ortiz 5 years ago Dear Zujaj, SCImago Journal and Country Rank uses Scopus data, our impact indicator is the SJR. Check our web to locate the journal. We suggest you to consult...
- 《Transportation Research Record》 被引量: 0发表: 2018年 Adjustment Methods: Propensity Score Methods for Bias Reduction in the Comparison of a Treatment to a Non‐Randomized Control Group In observational studies, investigators have no control over the treatment assignment. The treated and non-...
Evaluation of the Fill-it-up-design to use historical control data in randomized clinical trials with two arm parallel group design Stephanie Wied, Martin Posch & Ralf-Dieter Hilgers BMC Medical Research Methodology volume 24, Article number: 197 (2024) Cite this article 451 Accesses 1 Altmet...
The recent developments of theoretical research, model tests and engineering applications of structural control in mainland China are reviewed in this paper. It includes seismic isolation, passive energy dissipation, active and semi-active control, smart materials and smart structural systems. It can be...
In recent years,root rot diseases of Chinese herbal medicine have been posing grave threat to the development of the traditional Chinese medicine industry. This article presents a review on the occurring situation of the root rot disease,including the occurrence of the disease,the diversity of the...
Cancer is a group of diseases in which cells divide continuously and excessively. Cell division is tightly regulated by multiple evolutionarily conserved cell cycle control mechanisms, to ensure the production of two genetically identical cells. Cell cycle checkpoints operate as DNA surveillance mechanisms...