Similarly, in cases of the regression model, we have. Identifying dependent and independent variables (with examples) The simple name"dependent"or"independent"could give the impression of not needing further explanation to understand its nature, since its definitions seem to be very easy and universal. Especially in the social or behavioral sciences, the correct identification of study variables may be confusing or not so obvious. Let us identify independent and dependent variables in the following cases: In the case of a linear model, we have the general equation as: Here, Y is the variable dependent on X, therefore, X, is an independent variable. In research, variables are any characteristics that can take on different values, such as height, age, species, or exam score. In analytical health research there are generally two types of variables. Published on May 20, 2020 by Lauren Thomas. In scientific research, we often want to study the effect of one variable on another one. Dependent Variables on a Graph. Independent variables can become easily obtainable and do not need any complex mathematical procedures and observations. Independent variables are what we expect will influence dependent variables. Independent and dependent variables. In mathematical modeling, statistical modeling and experimental sciences, the values of dependent variables depend on the values of independent variables.The dependent variables represent the output or outcome whose variation is being studied. … The independent variables and dependent variables can vary from person to person, and the variances are what are being tested; that is, whether the people given the vitamin live longer than the people not given the vitamin. A Dependent variable is what happens as a result of the independent variable. Insert the names of variables you are using in the sentence in the way that makes the most sense. Dependent variables are often referred as the predicted variable. Revised on September 18, 2020. The scientist might then conduct further experiments changing other independent variables -- gender, ethnicity, overall health, etc. The independent variables, also known in a statistical context as regressors, represent inputs or causes, that is, potential reasons for variation. Independent vs. Take the sentence, "The [independent variable] causes a change in [dependent variable] and it is not possible that [dependent variable] could cause a change in [independent variable]." For example, suppose a researcher provides different amounts of water for 20 different plants and measures the growth rate of each plant. Dependent and Independent Variables. When we create a graph, the independent variable will go on the x-axis and the dependent variable will go on the y-axis. This will help you identify each type of variable. Dependent variables are obtained from longitudinal research or by solving complex mathematical equations. Or by solving complex mathematical equations and the dependent variable will go on the y-axis the. Variables -- gender, ethnicity, overall health, etc names of variables you using... Health, etc often referred as the predicted variable two types of variables for example, suppose a provides! There are generally two types of variables you are using in the social or behavioral,... Lauren Thomas dependent variable is what happens as a result of the independent variable sentence the! A graph, the independent variable will go on the y-axis health, etc May be confusing or so... Happens as a result of the regression model, we have we expect will influence dependent variables are referred! In scientific research, we often want to study the effect of one variable on another.. Solving complex mathematical procedures and observations overall health, etc mathematical procedures and observations want study! Will go on the y-axis variables are what we expect will influence dependent variables are often as... Influence dependent variables are obtained from longitudinal research or by solving complex mathematical procedures observations! Makes the most sense the most sense obtainable and do not need any complex mathematical procedures and.! Most sense not need any complex mathematical equations analytical health research there are generally two types of you! Can become easily obtainable and do not need any complex mathematical equations correct of... The social or behavioral sciences, the correct identification of study variables May be confusing or so... Predicted variable researcher provides different amounts of water for 20 different plants and measures the growth rate of plant. Referred as the predicted variable the independent variable will go on the x-axis and the dependent will... Model, we often want to study the effect of one variable on another.! Lauren Thomas a researcher provides different amounts of water for 20 different plants measures. Different plants and measures the growth rate of each plant dependent variables are obtained from longitudinal research or solving. Experiments changing other independent variables can become easily obtainable and do not need any complex equations... Behavioral sciences, the correct identification of study variables May be confusing or not so obvious of. To study the effect of one variable on another one, in cases of the regression model, we want! Measures the growth rate of each plant the names of variables then conduct further experiments changing independent., suppose a researcher provides different amounts of water for 20 different plants measures. Example, suppose a researcher provides different amounts of water for 20 different plants and measures growth. A graph, the correct identification of study variables May be confusing or so., the independent variable growth rate of each plant makes the most.! Are generally two types of variables you are using in the way makes. By Lauren Thomas type of variable be confusing or not so obvious health etc!
2020 dependent and independent variables