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,...
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....
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. ...
Independent variable: An independent variable is a variable that is manipulated or controlled by the researcher in an experiment. For example, in a study on the effects of caffeine on attention, caffeine intake would be the independent variable. Dependent variable: A dependent variable is a variabl...
Therefore, we can define the independent variable as the experimental variable or variable that is manipulated by the research and has some effect on the DV. If there is a change or effect, we may conclude that the IV affected the DV. The ultimate here is to establish that the IV caused...
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation
A manipulated variable is a part of an experiment that you can change to see how other variables respond. Because it is the one variable that researchers change out of the rest of the variables of an experiment, it is also often referred to as an independent variable. When conducting an ...
relationships between the elements being studied, but in order to identify and try out a manipulated variable there has to be a research or an hypothesis that backs the idea that this variable has a correlation with the dependent variable (the one that the experiment is trying to predict or ...
a. manipulated b. measured c. controlled d. rejected What Are Variables in an Experiment? Variables are the things that are changing in an experiment. A variable is considered any factor, trait, or condition that may exist in different quantities, variations or types. An experiment typically...
Acontrol variableis an element of the experiment that is kept constant without any influences from external factors and variables. Anindependent variablerefers to the variable that is manipulated on purpose to determine whether or not there are any differences in the measurement of the dependent varia...