Identifying Independent and Dependent Variables

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People will become shy if they are in a crowd. What is the Independent Variable?

crowd (number of people around)

UV light decreases the growth of mold. What is the Independent Variable?

UV light

Drinking Red Bull increases hyperactivity in children. What is the Independent Variable?

Red Bull consumption

Eating sugar impairs performance on a memory task.What is the Independent Variable?

eating sugar

Eating lemons causes students to have higher test scores. What is the Independent Variable?

lemon consumption

Too much stress causes stomach aches. What is the Independent Variable?

stress level

Listening to a radio broadcast of a sports event while studying for a test decreases performances on the test. What is the Dependent Variable?

test performance

Eating lemons causes students to have higher test scores.What is the Dependent Variable?

test scores

More sleeps help students move to class more quickly. What is the Dependent Variable?

time it takes for students to get to class

More sleeps help students move to class more quickly. What is the Independent Variable?

hours of sleep

Having longer football practice increases touchdowns during games. What is the Independent Variable?

length of football practice

Listening to a radio broadcast of a sports event while studying for a test decreases performances on the test. What is the Independent Variable?

listening to a radio

Eating sugar impairs performance on a memory task.What is the Dependent Variable?

memory level

UV light decreases the growth of mold. What is the Dependent Variable?

mold growth

Having longer football practice increases touchdowns during games. What is the Dependent Variable?

number of touchdowns during games

What is the Dependent Variable?

rate of hyperactivity

Smoking cigarettes while driving a car increases lung cancer. What is the Dependent Variable?

rate of lung cancer

Too much stress causes stomach aches. What is the Dependent Variable?

rate of stomach aches

People will become shy if they are in a crowd. What is the Dependent Variable?

shyness

Smoking cigarettes while driving a car increases lung cancer. What is the Independent Variable?

smoking cigarettes


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