methods: iv and dv

Question 1

what is the independent variable (iv) in an experiment?

Answer 1

• variable manipulated or changed by the researcher
• used to demonstrate a difference between experimental conditions

Question 2

what is the dependent variable (dv) in an experiment?

Answer 2

• variable that is measured or the result of the experiment
• measures any changes due to the independent variable

Question 3

how does the independent variable (iv) relate to the dependent variable (dv)?

Answer 3

• the iv is manipulated to observe its effect on the dv
• causality (cause and effect) can be established