what is an independent variable in science

1 year ago 66
Nature

In science, variables are any characteristics that can take on different values, such as height, age, temperature, or test scores. There are two types of variables: independent and dependent.

An independent variable is the variable that is manipulated, controlled, or varied in an experimental study to explore its effects. It is called "independent" because it is not influenced by any other variables in the study. Independent variables are also called explanatory variables or predictor variables.

On the other hand, a dependent variable is something that depends on other factors. It is the variable that is being measured in an experiment. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before, etc. . The dependent variable is sometimes called the "response," the "symptoms," or the "outcome".

To determine the dependent and independent variables in a study, you need to read through the source and look for the following characteristics or keywords:

Dependent variables:

  • Depend on other variables
  • When searching for relationships between variables, you are trying to find what makes the dependent variable change
  • The dependent variable is sometimes called the "response," the "symptoms," or the "outcome"
  • The dependent variable is often the focus of the research study

Independent variables:

  • Arent affected by any other variables that the study measures
  • The independent variable is the thing that you are investigating or manipulating in an experiment
  • Independent variables are also called explanatory variables or predictor variables.