manipulated variable

简明释义

控制量

英英释义

例句

1.In a clinical trial, the dosage of the medication served as the manipulated variable (操控变量) to evaluate its effectiveness.

在临床试验中，药物的剂量作为manipulated variable (操控变量)，用于评估其有效性。

2.In this physics experiment, the angle of the ramp is the manipulated variable (操控变量) affecting the speed of the rolling ball.

在这个物理实验中，坡道的角度是影响滚动球速度的manipulated variable (操控变量)。

3.The speed of the fan was the manipulated variable (操控变量) in the study on air circulation.

风扇的速度是关于空气循环研究中的manipulated variable (操控变量)。

4.The researcher adjusted the concentration of the solution as the manipulated variable (操控变量) to see how it affects reaction rates.

研究人员调整溶液的浓度作为manipulated variable (操控变量)，以查看其对反应速率的影响。

5.In an experiment, the temperature is the manipulated variable (操控变量) that we change to observe its effect on plant growth.

在实验中，温度是我们改变的manipulated variable (操控变量)，以观察其对植物生长的影响。

作文

In the realm of scientific experimentation, understanding the concept of a manipulated variable is crucial. A manipulated variable, also known as an independent variable, is the factor that researchers intentionally change or control in an experiment to observe its effects on other variables. This process allows scientists to establish cause-and-effect relationships and draw conclusions based on empirical evidence.For instance, consider a simple experiment designed to study the growth of plants. In this scenario, a researcher might choose to investigate how different amounts of sunlight affect plant growth. Here, the amount of sunlight that each plant receives is the manipulated variable. By varying the sunlight exposure—some plants receiving full sunlight, others receiving partial sunlight, and some being kept in the shade—the researcher can observe how these changes influence the plants' growth rates.The importance of the manipulated variable cannot be overstated. It serves as the foundation for experimental design and plays a significant role in ensuring the validity of the results. By systematically altering the manipulated variable, scientists can isolate its effects from other factors, thereby enhancing the reliability of their findings. For example, if the researcher fails to control other variables such as water, soil quality, and temperature, it would become challenging to ascertain whether the differences in plant growth were indeed due to sunlight variation or other environmental factors.Moreover, recognizing the manipulated variable is essential for the replication of experiments. Scientific knowledge builds upon previous research, and for future studies to validate or challenge existing findings, they must clearly identify and manipulate the same variables. This ensures that other researchers can replicate the experiment under similar conditions, which is a cornerstone of the scientific method.In addition to its role in controlled experiments, the concept of a manipulated variable extends beyond the laboratory. In fields such as economics, psychology, and social sciences, researchers often manipulate variables to understand human behavior and societal trends. For example, an economist may manipulate interest rates (the manipulated variable) to observe how consumer spending changes in response. By analyzing the data collected, they can make informed predictions about economic stability and growth.Understanding the manipulated variable is not only vital for conducting experiments but also for interpreting data accurately. When reviewing research studies, it is important to identify the manipulated variable to comprehend how the results were achieved. This critical analysis helps in assessing the credibility of the research and its applicability to real-world situations.In conclusion, the manipulated variable is a fundamental concept in scientific research that enables researchers to explore and understand the dynamics of various phenomena. By manipulating specific variables, scientists can uncover relationships, test hypotheses, and contribute to the body of knowledge across disciplines. Whether in a laboratory setting or applied to broader societal issues, grasping the significance of the manipulated variable is essential for anyone engaged in research or interested in the scientific process. Ultimately, this understanding fosters a deeper appreciation for the complexities of the world around us and the mechanisms that govern it.

在科学实验领域，理解操控变量的概念至关重要。操控变量，也称为独立变量，是研究人员在实验中故意改变或控制的因素，以观察其对其他变量的影响。这一过程使科学家能够建立因果关系，并基于实证证据得出结论。例如，考虑一个简单的实验，旨在研究植物的生长。在这个场景中，研究人员可能选择调查不同阳光照射量如何影响植物生长。在这里，每株植物接受的阳光量就是操控变量。通过改变阳光暴露——一些植物接受全日照，另一些植物接受部分阳光，还有一些则被放置在阴影中——研究人员可以观察这些变化如何影响植物的生长速度。操控变量的重要性不容小觑。它是实验设计的基础，在确保结果有效性方面发挥着重要作用。通过系统地改变操控变量，科学家可以将其影响从其他因素中隔离，从而增强研究结果的可靠性。例如，如果研究人员未能控制其他变量，如水分、土壤质量和温度，那么就很难确定植物生长的差异是否确实是由于阳光变化引起的，还是其他环境因素造成的。此外，识别操控变量对于实验的重复性也至关重要。科学知识建立在先前的研究之上，而为了未来的研究验证或挑战现有发现，必须清楚地识别和操控相同的变量。这确保了其他研究人员可以在类似条件下重复实验，这是科学方法的基石。除了在控制实验中的作用，操控变量的概念还超越了实验室。在经济学、心理学和社会科学等领域，研究人员经常操控变量以理解人类行为和社会趋势。例如，一位经济学家可能会操控利率（操控变量）来观察消费者支出如何变化。通过分析收集的数据，他们可以对经济稳定性和增长做出明智的预测。理解操控变量不仅对进行实验至关重要，而且对准确解读数据也同样重要。在审查研究时，识别操控变量有助于理解结果是如何得出的。这一关键分析有助于评估研究的可信度及其在现实世界中的适用性。总之，操控变量是科学研究中的一个基本概念，使研究人员能够探索和理解各种现象的动态。通过操控特定变量，科学家可以揭示关系、测试假设，并为各学科的知识体系作出贡献。无论是在实验室环境中，还是应用于更广泛的社会问题，掌握操控变量的意义对于任何从事研究或对科学过程感兴趣的人来说都是必不可少的。最终，这种理解促进了对我们周围世界复杂性及其运作机制的更深入欣赏。