control variable D. constant variable 相关知识点: 试题来源: 解析 A。解析:在实验中,由科学家改变的变量被称为自变量。选项 B“dependent variable”是因变量,是随着自变量的变化而变化的变量。选项 C“control variable”是控制变量,保持不变以确保实验的准确性。选项 D“constant variable”是常量变量,也是保持...
B. The variable that is manipulated. C. The variable that is controlled. D. The variable that is observed. 相关知识点: 试题来源: 解析 B。原因:文章中提到“In an experiment, researchers manipulate an independent variable and observe the effect on a dependent variable.”,即在实验中,研究者...
It is a controllable variable in an experiment that is believed to affect the OEC or other metrics of interest. In a simple A/B test, there is usually one parameter with two values (such as A and B). In more complex experiments, ...
Experiment:An experiment is a test performed to observe the outcome of a predicted hypothesis. Valid and repeated experimental results can provide evidence to support or reject a hypothesis.Answer and Explanation: A valid experimental design requires the use of controlled variables whose effects and ...
Why is it difficult to control invasive species? What is the difference between an independent and a dependent variable in an experiment? Why is it important to have a mixed research? Why is it important to control soil acidity? Why are standards needed for measured quantities?
A. The variable that is changed by the experimenter. B. The variable that changes in response to the independent variable. C. The variable that is kept the same. D. The variable that is not important. 相关知识点: 试题来源: 解析 A。在实验中,自变量是由实验者改变的变量。选项 B 是因变量...
A. independent variable B. dependent variable C. control variable D. experimental variable 相关知识点: 试题来源: 解析 A。在科学实验中,由实验者改变的变量叫自变量,即“independent variable”;选项 B“dependent variable”是因变量;选项 C“control variable”是控制变量;选项 D“experimental variable”不是...
Controlled experiments often include experimental groups and control groups, the first one beings the ones exposed to the independent variable and the second ones being the ones that are not exposed to it, and took as a baseline to compare results. Each group must be controlled, this means ...
A control variable is a factor in the experiment that remains the same throughout each trial or test. An independent variable is a factor that is...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer...
A controlled experiment refers to the experiment where no other factors are changed except for the independent variable. The control group will serve...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer...