manipulated variable

简明释义

操纵量

英英释义

例句

1.In our physics experiment, the speed of the cart was the manipulated variable 操控变量 we adjusted to measure friction.

在我们的物理实验中，手推车的速度是我们调整的操控变量，用于测量摩擦力。

2.The manipulated variable 操控变量 in this study was the concentration of the solution.

本研究中的操控变量是溶液的浓度。

3.In the experiment, the temperature was the manipulated variable 操控变量 that affected the reaction rate.

在实验中，温度是影响反应速率的操控变量。

4.By changing the amount of fertilizer, we identified it as the manipulated variable 操控变量 in our plant growth study.

通过改变肥料的数量，我们确定它是植物生长研究中的操控变量。

5.The researcher focused on the manipulated variable 操控变量 to see how it impacted the outcome of the trial.

研究人员专注于操控变量，以观察它如何影响试验结果。

作文

In the realm of scientific experimentation, understanding the concept of a manipulated variable is crucial for drawing accurate conclusions. A manipulated variable refers to the factor in an experiment that is intentionally changed or controlled by the researcher to observe its effect on another variable. This variable is also known as the independent variable. For instance, in a study examining the impact of different amounts of sunlight on plant growth, the amount of sunlight would be the manipulated variable, while the growth of the plants would be the dependent variable. By altering the amount of sunlight received, researchers can measure how this change influences the plants' growth. The importance of a manipulated variable cannot be overstated. It allows scientists to establish cause-and-effect relationships between variables. Without manipulating one variable while keeping others constant, it would be nearly impossible to determine whether changes in the dependent variable are truly due to the changes made in the manipulated variable. This clarity is essential in fields ranging from biology to psychology, where understanding interactions between variables can lead to significant discoveries and advancements.Moreover, careful selection and control of the manipulated variable can enhance the validity of an experiment. Researchers must ensure that other potential variables are controlled or accounted for to isolate the effects of the manipulated variable. For example, if a researcher is studying the effect of temperature on the rate of a chemical reaction, they must keep other factors, such as concentration and pressure, constant. This meticulous approach helps to ensure that any observed changes in the reaction rate can be attributed solely to the variations in temperature, which is the manipulated variable in this case.In addition to its role in scientific research, the concept of a manipulated variable extends to various applications in everyday life. For example, consider a business testing the impact of a new marketing strategy on sales. The marketing strategy would serve as the manipulated variable, while the sales figures would represent the dependent variable. By adjusting their approach and analyzing the resulting sales data, businesses can identify effective strategies and optimize their operations.In conclusion, the manipulated variable is a fundamental component of experimental design that enables researchers and practitioners to explore relationships between variables systematically. By changing one variable while controlling others, it becomes possible to draw meaningful conclusions about how different factors interact. Whether in a laboratory setting or a practical application, understanding the role of the manipulated variable is essential for anyone engaged in research or analysis. As we continue to explore the complexities of the world around us, mastering the concept of the manipulated variable will undoubtedly enhance our ability to make informed decisions based on empirical evidence.

在科学实验的领域中，理解“manipulated variable”这一概念对于得出准确的结论至关重要。“manipulated variable”指的是实验中研究者故意改变或控制的因素，以观察其对另一个变量的影响。这个变量也被称为自变量。例如，在一项研究中，考察不同阳光照射量对植物生长的影响，阳光的照射量将是“manipulated variable”，而植物的生长则是因变量。通过改变接收到的阳光量，研究人员可以测量这种变化如何影响植物的生长。“manipulated variable”的重要性不容小觑。它使科学家能够建立变量之间的因果关系。如果不在保持其他变量不变的情况下操控一个变量，就几乎不可能确定因变量的变化是否确实是由于对“manipulated variable”的改变所致。这种清晰性在生物学到心理学等各个领域都至关重要，因为理解变量之间的相互作用可以导致重大的发现和进步。此外，仔细选择和控制“manipulated variable”可以增强实验的有效性。研究人员必须确保其他潜在变量被控制或考虑在内，以便隔离“manipulated variable”的影响。例如，如果研究人员正在研究温度对化学反应速率的影响，他们必须保持其他因素（如浓度和压力）不变。这种细致入微的方法有助于确保观察到的反应速率的任何变化都可以归因于温度的变化，而温度在这种情况下就是“manipulated variable”。除了在科学研究中的作用，“manipulated variable”的概念还扩展到日常生活中的各种应用。例如，考虑一家企业测试新营销策略对销售的影响。营销策略将作为“manipulated variable”，而销售数据则代表因变量。通过调整他们的方法并分析结果销售数据，企业可以识别有效的策略并优化其运营。总之，“manipulated variable”是实验设计的基本组成部分，使研究人员和从业者能够系统地探索变量之间的关系。通过改变一个变量而控制其他变量，就可以得出有关不同因素如何相互作用的有意义的结论。无论是在实验室环境中还是在实际应用中，理解“manipulated variable”的作用对于任何参与研究或分析的人来说都是至关重要的。随着我们继续探索周围世界的复杂性，掌握“manipulated variable”的概念无疑将增强我们基于实证证据做出明智决策的能力。