Correlations

Question 1

What is a correlational study??

Answer 1

A process in which the data is analysed and the strength and direction of a relationship between two variables is measured.

Question 2

Why do we have correlational studies?? (Pro)

Answer 2

Allows us to see if variables are related when it would be unethical to test experimentally.
Allows us to see the strength of the relationship between the variables.

Question 3

How is a correlation shown??

Answer 3

Scatter graphs

Question 4

What data can only be conducted in a correlation??

Answer 4

Quantitive data

Question 5

Correlation coefficient

Answer 5

Mathematical calculation of the strength and direction of a correlation.
Between -1 and +1 measures the relationship.
Correlations can be categorised into positive, negative and zero correlations.

Question 6

Positive correlation

Answer 6

As one variable increases so does the other variable.

Strong positive correlation equals +1

Question 7

Negative correlation

Answer 7

There is a relationship.
As one variable increases the other variable decreases.
Strong negative correlation equals -1.

Question 8

Zero correlation

Answer 8

There is no clear relationship.

Zero correlation equals zero.

Question 9

Cons of a correlation

Answer 9

Makes us think there is no relationship between variables when in fact there is-(Curvy linear)
We cannot draw conclusions about the cause and effect from correlational data as there is no IV or DV.