Identifying Variables Quiz

In an experiment, the independent variable is:

• The factor that is measured or observed
• The factor that is manipulated or changed
• The factor that is kept constant
• The factor that is controlled by the researcher

Which of the following is an example of an independent variable?

• The number of participants in a study
• The time of day the study is conducted
• The height of the participants
• The type of treatment given to the participants

The dependent variable is:

• The factor that is measured or observed
• The factor that is manipulated or changed
• The factor that is kept constant
• The factor that is controlled by the researcher

Which of the following is an example of a dependent variable?

• The number of participants in a study
• The time of day the study is conducted
• The height of the participants
• The test scores of the participants

The control variable is:

• The factor that is measured or observed
• The factor that is manipulated or changed
• The factor that is kept constant
• The factor that is controlled by the researcher

Which of the following is an example of a control variable?

• The number of participants in a study
• The time of day the study is conducted
• The height of the participants
• The temperature of the room where the study is conducted

In a study investigating the effect of different study techniques on students' test scores, what is the independent variable?

• The test scores
• The students' study habits
• The type of study materials used
• The time spent studying

In a study investigating the effect of caffeine on sleep quality, what is the dependent variable?

• The participants' sleep quality
• The amount of caffeine consumed
• The participants' age
• The participants' gender

In a study investigating the effect of background music on concentration levels, what is the dependent variable?

• The participants' concentration levels
• The type of background music
• The participants' age
• The participants' gender

In a study investigating the effect of background music on concentration levels, what is the control variable?

• The participants' concentration levels
• The type of background music
• The participants' age
• The participants' gender