Research methods recap Y10

Which of the following defines an independent variable?

• An extraneous variable present in the environment of a study.

• The variable being measured in a study.

• The variable manipulated by the researcher.

• A variable which interferes with the results of a study.

Which of the following defines a dependent variable?

• A variable manipulated by a researcher.

• A variable which if not controlled, could interfere with the findings of a study.

• A variable which is operationalized.

• A variable which is measured in a study.

What is the independent variable in the following scenario? "I am interested in the influence of sugar on psychology test scores. I will give half of my students candy and the other half almonds, before their test and compare their results."

• Apples

• Test scores

• Candy

• Sugar

What is the dependent variable in the following scenario? "I am interested in the influence of sugar on psychology test scores. I will give half of my students candy and the other half almonds, before their test and compare their results."

• Candy

• Apples

• Sugar

• Test scores

What is the independent variable in the following scenario? "Lack of sleep significantly affects learning in 10-year-old boys"

• Learning

• Sugar

• Amount of sleep

• 10 year old boys

What is the dependent variable in the following scenario? "Lack of sleep significantly affects learning in 10-year-old boys"

• Amount of sleep

• Learning

• 10 year old boys

• Apple

What is the independent variable in the following scenario? Social class has a significant effect on IQ score.

• IQ

• Social class

• Test scores

• Age

What is the dependent variable in the following scenario? Social class has a significant effect on IQ score

• IQ

• Test scores

• Social class

• CAT scores

Anything that is not the independent variable that has the potential to affect the results is called an ____________ variable

• Operationalised

• independent

• dependent

• extraneous

If extraneous variables are not controlled and affect the dependent variable, they become __________ variables.

• Operationalised

• Extraneous

• Confounding

• annoying