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,研究者操纵自变量并观察其对因变量的影响,所以自变量是被操纵的变量。
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...
Identify the term: This is a factor (variable) in an experiment that a scientist actually manipulates. Identify the term: This part of an experiment is included so that a scientist can be confident that any observed changes were due to the experimental manipulation, an...
The condition that is controlled so it does not change during an experiment is called? The measure used to judge the outcome of the experiment is called the ___ variable. The aspect of an experiment that is allowed to freely vary to determine if it is affected by changes in the indep...
Finally, thinking about a variable’s role in an experiment or statistical study can help you better understand it. Dependent Variables In an experiment, you measure anoutcome variableof interest. If you’re studying plant growth, infection rates, or bone density, that will be the outcome you ...
changes because of the independent variable C. stays the same throughout the experiment D. is not important 相关知识点: 试题来源: 解析 B。解析:因变量是在实验中因为自变量的变化而变化的变量。选项 A“the scientist changes”是自变量。选项 C“stays the same throughout the experiment”是控制变量或...
A. independent variable B. dependent variable C. 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...
in the enclosure为啥就要比 the enclosure was empty 高呢暗含假设“狗放食物是在给予帮助”，E说明狗...
Answer to: When conducting an experiment to test a hypothesis, only one changeable factor is studied; this is called a variable. a. True b. False...
Controlled Variable:Acontrolled variableorconstant variableis a variable that does not change during an experiment. Example: In the experiment measuring the effect of temperature on solubility, controlled variable could include the source of water used in the experiment, the size and type of containers...