Correlations

Question 1

What is a positive correlation ?

Answer 1

The values of both co - variables

Increase / decrease together

Question 2

What is a negative correlation ?

Answer 2

One variable increases the other decreases.

Question 3

What is no correlation ?

Answer 3

If there is no correlation between the variables they are said to be uncorrelated / no correlation - no relation ship exists

Question 4

Strengths of correlation?

Answer 4

Can see the strength of a relationship between variables

May suggest further research

Provide quantitative data

Question 5

Weaknesses of correlations ?

Answer 5

Cannot assume cause and effect

We don’t always get the details behind the given data

Question 6

How to work out spearman’s rho

Answer 6

1. Rank the data separately for each variable
2. find the difference between each participants first and second rankings
3. Square the difference
4. Add up the squared differences
5. Use the formaula
6. Compare observed value with the critical values table
7. Write a statement of significance