Causation Vs Correlation
Which is more reliable for drawing conclusions causation or correlation?
Causation
If a study is trying to prove causation between drinking Gatorade and a basketball player's free throw percentage, what is the independent variable?
Drinking Gatorade
How many independent variables should an experiment have?
1
Main function: Circulating blood, oxygen and nutrients around the body.
Circulatory/Cardiovascular
The main function of this system is breaking down and absorbing food.
Digestive System
Causation or Correlation
Age of a person and their vocabulary
Correlation
If a study is trying to prove causation between drinking Gatorade and a basketball player's free throw percentage, what is the dependent variable?
Free throw percentage
Why do scientist design their experiments with constants?
To make the sure the study is fair/unbiased.
OR
To make sure the data is only a result of the IV being changed.
Main function: Eliminating waste from the body.
Urinary System
The lymph nodes and spleen defend the body in the function of this system.
Immune/Lymphatic
How are correlations usually found?
An epidemiological study
What variable is sometimes referred to as the data of the experiment?
The dependent variable (because it's what is measured or collected by the scientist).
Find the lurking variable in the following study: A study found that more sunscreen was found in the homes in towns that experience a high rate of skin cancer.
The towns experience a high about of sun.
The main organs are the lungs, trachea and diaphragm.
Respiratory System
This system supports, structures and protects the body.
Skeletal System
If a causative relationship is found between two variables will there always be a correlative relationship between the variables?
Yes.
What is the dependent variable in an experiment that attempt to study the effectiveness of new flu shot during flu season?
The percentage of people who get the flu
What is the lurking variable in the following correlation: A study that looked at houses that caught on fire found a positive correlation between the number of firefighter that responded to the fire and the amount of damage.
The severity of the fire.
Controlling involuntary actions is part of its main function
Nervous System
This system helps you move and keeps your blood pumping.
Muscular
Causation or Correlation
Consuming caffeine and a person being more alert
Causation
Why do scientists sometimes conduct epidemiological studies if they are less scientific than an experimental study?
Morally you can't ask participants to do something you think might harm them.
OR
Sometimes an experimental study is not practical.
A beneficial effect produced by a fake drug or treatment that cannot be the result of the drug or treatment.
Its main function is secreting regulatory hormones into the blood.
Endocrine System
If your metabolism isn't maintaining itself properly it's probably because of a breakdown in this system.
Endocrine