4.1 Correlation Flashcards
1
Q
What are the two things you should add when describing correlation?
A
» Strength
» Type
2
Q
What is strength?
A
» Weak
» Moderate
» Strong
3
Q
What is type?
A
» Negative
» No correlation
» Positive
4
Q
How can you interpret the correlation between 2 variables?
A
» State the correlation shown
» Describe the relationship in the context
» Context is very important, for example as age increases, muscle activity decreases
5
Q
When do 2 variables have a casual relationship?
A
» When a change in one variable directly causes a change in the other
6
Q
What does the vertical axis value depend on ?
A
» Horizontal value
» Which is the independent/ explanatory variable
7
Q
What is another name for the vertical axis variable?
A
» Dependent/response variable
