AQA Psychology - Research Methods - Correlations
A correlation is an association that shows the strength and direction of a relationship between two co-variables. It indicates whether, and how strongly, the variables are related — but not whether one causes the other.
What is a correlation?
An association illustrating the strengths and direction between to co-variables
Key Terms
What is a correlation?
An association illustrating the strengths and direction between to co-variables
What is a scattergram?
Plotting a correlation on to a scattergram
-One co-variable on x-axis other on y-axis
What are the three types of correlation?
Positive correlation
Negative correlation
Zero correlation
What is a positive correlation?
Co-variables rise or fall together
What is a negative correlation?
Co-variables rise and the other falls
What is a zero correlation?
No relationship between the two variables
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| Term | Definition |
|---|---|
What is a correlation? | An association illustrating the strengths and direction between to co-variables |
What is a scattergram? | Plotting a correlation on to a scattergram |
What are the three types of correlation? |
|
What is a positive correlation? | Co-variables rise or fall together |
What is a negative correlation? | Co-variables rise and the other falls |
What is a zero correlation? | No relationship between the two variables |
What are the differences between experiments and correlations? |
|
Strength of correlation: |
- Economical = less time consuming (don’t have to control the environment) |
Limitation of correlation: |
|