Identifying Independent and Dependent Variables

UV light decreases the growth of mold

IV: UV light DV: mold growth

People will become shy if they are in a crowd

IV: crowd (number of people around) DV: shyness

Eating lemons causes students to have higher test scores

IV: eating lemons DV: test scores

More sleeps help students move to class more quickly

IV: hours of sleep DV: time it takes for students to get to class

Having longer football practice increases touchdowns during games

IV: length of football practice DV: number of touchdowns during games

Listening to a radio broadcast of a sports event while studying for a test decreases performances on the test

IV: listening to a radio DV: test performance

Too much stress causes stomach aches

IV: stress level DV: rate of stomach aches

Independent Variable

The variable that is changed on purpose - I CHANGE

Dependent Variable

The variable that is measured or observed - DEPENDS ON INDEPENDENT