Variables Quiz

What is the definition of an independent variable?

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

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

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

• A variable that is not relevant to the experiment.

What is the definition of a dependent variable?

• A dependent variable is the variable that remains constant in an experiment or study.

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

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

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

Which variable is manipulated or changed by the researcher in an experiment?

• confounding variable

• control variable

• dependent variable

• independent variable

Which variable is measured or observed in an experiment?

• dependent variable

• extraneous variable

• control variable

• independent variable

In a study investigating the effect of temperature on plant growth, what is the independent variable?

• temperature

• water availability

• soil pH

• light intensity

In a study investigating the effect of temperature on plant growth, what is the dependent variable?

• temperature

• soil pH

• plant growth

• amount of sunlight

In a study investigating the relationship between study time and test scores, what is the independent variable?

• relationship

• study

• study time

• test scores

In a study investigating the relationship between study time and test scores, what is the dependent variable?

• test scores

• age of participants

• number of participants

• study time

Which of the following is an example of an independent variable: a) age b) height c) weight d) all of the above

• a

• b

• c

• d

Which of the following is an example of a dependent variable: a) temperature b) time c) speed d) all of the above

• d) all of the above

• c) speed

• b) time

• a) temperature