Independent and Dependent Variables

What is an independent variable?

• A variable that is manipulated or controlled by the researcher in an experiment.

• A variable that is determined by chance in an experiment.

• A variable that is not relevant to the experiment.

• A variable that is measured or observed in an experiment.

The factors that do not change during the experiment.

• independent

• dependent

• control

• experimental

What is the purpose of an independent variable in an experiment?

• To observe its effect on the dependent variable.

• To control the experiment conditions.

• To collect data for analysis.

• To determine the sample size.

What is a dependent variable?

• A dependent variable is the variable that is manipulated or changed in an experiment or study.

• A dependent variable is the variable that is controlled by the researcher in an experiment or study.

• A dependent variable is the variable that is not affected by the independent variable in an experiment or study.

• A dependent variable is the variable being measured or observed in an experiment or study.

Give an example of dependent variable.

• education

• mental health

• income

• race

In a scientific experiment, which variable is manipulated by the researcher?

• dependent variable

• control variable

• independent variable

• extraneous variable

What is the purpose of a dependent variable in an experiment?

• The purpose of a dependent variable in an experiment is to control the independent variable.

• The purpose of a dependent variable in an experiment is to determine the cause and effect relationship between variables.

• The purpose of a dependent variable in an experiment is to measure or observe the outcome or result affected by the independent variable.

• The purpose of a dependent variable in an experiment is to manipulate the independent variable.

What is the role of a control variable in an experiment?

• To manipulate the independent variable.

• To measure the outcome of the experiment.

• To ensure that the experiment is fair by keeping all other variables constant.

• To determine the cause and effect relationship between variables.

What is a dependent variable in an experiment?

• A variable that is manipulated or controlled by the researcher.

• A variable that is determined by chance.

• A variable that is measured or observed and is expected to change as a result of the experiment.

• A variable that is not relevant to the experiment.

Give an example of a dependent variable in a biology experiment.

• The temperature of the environment.

• The color of a butterfly's wings.

• The size of a fish's gills.

• The growth rate of plants