Variables and Control Group Quiz

What is an independent variable?

• A variable that is measured or observed in an experiment to determine its effect on the dependent variable.

• A variable that is not relevant to the experiment and does not affect the dependent variable.

• A variable that is only used in qualitative research and not in quantitative research.

• A variable that is manipulated or controlled by the researcher in an experiment to determine its effect on the dependent variable.

Tags

NGSS.MS-PS2-2

What is a dependent variable?

• A dependent variable is the variable that is manipulated by the researcher.

• A dependent variable is the outcome or response variable that is affected by the independent variable(s).

• A dependent variable is the variable that is not affected by the independent variable(s).

• A dependent variable is the variable that remains constant throughout an experiment.

Tags

NGSS.MS-PS2-2

What is a control group?

• A control group is a group in an experiment that receives a higher dosage of the experimental treatment or intervention.

• A control group is a group in an experiment that receives a different type of experimental treatment or intervention.

• A control group is a group in an experiment that receives the same dosage of the experimental treatment or intervention.

• A control group is a group in an experiment that does not receive the experimental treatment or intervention.

What is an experimental group?

• A group in an experiment that does not receive any treatment or intervention.

• A group in an experiment that receives the treatment or intervention being tested.

• A group in an experiment that is used as a control.

• A group in an experiment that is randomly selected from the population.

What is a controlled variable?

• A controlled variable is a variable that is randomly selected in an experiment.

• A controlled variable is a variable that is kept constant or unchanged in an experiment.

• A controlled variable is a variable that is measured in an experiment.

• A controlled variable is a variable that is manipulated in an experiment.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Which variable is manipulated by the researcher in an experiment?

• extraneous variable

• control variable

• dependent variable

• independent variable

Tags

NGSS.MS-PS2-2

Which variable is measured or observed in an experiment?

• dependent variable

• extraneous variable

• control variable

• independent variable

Tags

NGSS.MS-PS2-2

What is the purpose of a control group in an experiment?

• To provide a baseline for comparison

• To validate the hypothesis.

• To increase the sample size.

• To confuse the results.

What is the purpose of an experimental group in an experiment?

• To provide a comparison for the control group

• To receive the treatment or intervention being tested

• To collect data for analysis

• To observe the control group

Why is it important to have controlled variables in an experiment?

• To confuse the participants of the experiment.

• To increase the chances of getting accurate results.

• To make the experiment more complicated.

• To ensure that observed changes are due to the manipulated variable and not other factors.