Psychology A-Level
Variance and standard deviation
What Variance and standard deviation means in Psychology A-Level, as defined for AQA.
Definition of Variance and standard deviation
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Reference: AQA
The variance is the squared-deviation total divided by the required denominator, and the standard deviation is its positive square root.
Topics that use Variance and standard deviation
- Handling data (AQA A-Level)
Related terms
- bar chart
- calculating the Sign test
- causation and third variables
- central tendency
- choosing a statistical test
- co-variables
- condition by condition comparison
- Consistency of scores
Using Variance and standard deviation in the exam
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