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Independent vs dependent Variables

Total questions: 40

Worksheet time: 2hrs 35mins

Name
Class
Date
1.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
2.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
Type of sunflower
3.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
4.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
5.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the independent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
6.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the dependent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
7.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the independent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good the service was
8.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the independent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good the service was
9.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the dependent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good or bad the service was
10.
Sarah wanted to find out if the size of a car tire made it a smoother ride over bumps. What is the independent variable?
a)
Size of tire
b)
How smooth the ride was over bumps
c)
Type of car
11.
Sarah wanted to find out if the size of a car tire made it a smoother ride over bumps. What is the dependent variable?
a)
Size of tire
b)
How smooth the ride was over bumps
c)
Type of car
12.
Penelope wanted to see if the temperature of the oven made cookies softer or harder. What is the independent variable.
a)
Hardness of cookie
b)
Type of oven
c)
Temperature of oven
13.
Penelope wanted to see if the temperature of the oven made cookies softer or harder. What is the dependent variable.
a)
Hardness of cookie
b)
Type of oven
c)
Temperature of oven
14.
Stacy measured the speed of 5 birds that lived around her house. What is the Independent variable?
a)
Type of Bird
b)
Speed of Bird
c)
weather outside
15.
Stacy measured the speed of 5 birds that lived around her house. What is the dependent  variable?
a)
Type of Bird
b)
Speed of Bird
c)
weather outside
16.
Mrs. Cote wanted to know if the iPhone could stand up against being dropped from different heights. She dropped them from 3 heights and saw if they broke. What is the independent variable?
a)
Drop height
b)
If they had a case on them or not
c)
If they broke
17.
Mrs. Cote wanted to know if the iPhone could stand up against being dropped from different heights. She dropped them from 3 heights and saw if they broke. What is the dependent variable?
a)
Drop height
b)
If they had a case on them or not
c)
If they broke
18.

How long you sleep affects your test score. Identify the dependent variable.

a)

length of sleep

b)

test score

19.

Vitamin could extend a person's life expectancy. The dependent variable is __________.

a)

amount of vitamin taken

b)

life span

20.

"Do tomatoes grow faster under fluorescent, incandescent, or natural light?"


What is the independent variable?

a)

type of light

b)

rate of growth

21.

You want to test which soil will help grass grow the tallest. The height of the grown grass is the __________ variable.

a)

independent

b)

dependent

22.

"Which brand of bubblegum will have the biggest bubble?"


The size of the bubble is the __________ variable.

a)

independent

b)

dependent

23.

Your friends invite you to a party and you decide to attend, but you're worried that staying out too long will affect how well you do on your geometry test tomorrow morning. Your exam score is the __________ variable.

a)

independent

b)

dependent

24.

Say you want to know whether caffeine affects your appetite. The presence/absence of a given amount of caffeine would be the __________ variable. How hungry you are would be the __________ variable.

a)

independent , dependent

b)

dependent , independent

25.

What would the INDEPENDENT variable be in an experiment testing which type of paper airplane goes farthest?

a)

the type of paper

b)

the distance of each plane's flight

c)

how hard the plane is thrown

d)

the person who made the paper plane

26.

Students took a test after they had studied either in silence or with the television turned on. What is the dependent variable?

a)

subject

b)

test scores

c)

silence

d)

amount of exposure to television

27.

Jon set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

a)

who sets up the experiment

b)

height of the ramp

c)

mass of the ball

d)

distance traveled by the ball

28.

Does the type of gasoline put in a car affect how fast the car can drive. What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

29.

Does the type of gasoline put in a car affect how fast the car can drive. What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

30.
Tiffany was investing how fast it took Hayden to react to different sounds. Identify the independent variable.
a)
How fast Hayden reacted
b)
different sounds
c)
types of music
d)
Hayden
31.
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?
a)
Type of reward
b)
Praise
c)
Type of dog
d)
Amount of time the dog follows commands
32.
The measurable factor in an experiment is known as the: 
a)
Control
b)
Independent Variable
c)
Constant
d)
Dependent Variable
33.
 A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on. What is the dependent variable?
a)
silence
b)
television turned on
c)
score on test
d)
textbook material
34.

Individuals will respond more to a person in uniform than to a person not in uniform. What is the independent variable?

a)

individuals

b)

person in uniform

c)

response to uniform

d)

none of these work

35.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
36.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the independent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
37.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the independent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good the service was
38.
This is a method of research where an investigator manipulates one or more factors (independent variables) to observe the effect on some behavior or mental process (the dependent variable).
a)
Experiments
b)
Case Study
c)
Survey
d)
Observational
e)
Correlational
39.
In a study of the effect of a driver training program on driving skill, a possible operationalisation of the dependent variable would be...
a)
driving quality
b)
number of accidents
c)
hours spent training
d)
amount of traffic
40.
Factors that cause differences between the experimental group and control group other than the independent variable. 
a)
control group
b)
population
c)
confounding variables

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