An independent variable, sometimes called an experimental or predictor variable, is a variable that is being manipulated in an experiment in order to observe the effect on a dependent variable, sometimes called an outcome variable.Imagine that a tutor asks 100 students to complete a maths test. ...
The independent variable is being manipulated in an experiment. Indicate whether the statement is true or false. What is a field experiment? In an experiment, control over extraneous variables, such as the time of day or the temperature of the room, can be obtained by \\ a. using a double...
解析 B。本题考查科学实验中的变量概念。独立变量(independent variable)是由研究者操纵的变量。A 选项“dependent variable”是因变量,是随独立变量变化而变化的。C 选项“control variable”是控制变量,用于保持实验条件的一致性。D 选项“random variable”是随机变量,与实验中的操纵变量无关。
The manipulated variable in an experiment is the one variable of the experiment that the scientist decides will change. ... In the salt and water experiment, for example, the manipulated variable isthe amount of salt added to the water. In the plant experiment, the manipulated variable is the...
In a scientific experiment, the independent variable is manipulated to observe its effect on the dependent variable.Which of the following is an example of an independent variable? A. The temperature of a reaction. B. The color of a solution. C. The time it takes for a reaction to occur....
Is the variable one that is being manipulated by the experimenters? Are researchers trying to identify how the variable influences another variable? Is the variable something that cannot be changed but that is not dependent on other variables in the experiment?
Manipulated Variable The manipulated variable in an experiment is the one variable of the experiment that the scientist decides will change. The manipulated variable may also be called the independent variable. In a properly designed experiment, there will be only one manipulated variable. In the sal...
2.StatisticsA manipulated variable in an experiment or study whose presence or degree determines the change in the dependent variable. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin...
In an experiment, theindependent variableis manipulated and the effects observed. These observed effects are called dependent variables. They are often the hypothesized outcome of manipulating the independent variable. A change in the dependent variabledependson the independent variable, hence the name. ...
The independent variable, often denoted as X, is a variable that is intentionally manipulated or controlled by the researcher in an experiment or study. It is the variable that is believed to have a causal effect on the dependent variable, which is the outcome being measured. The independent ...