Psychology A-Level
Standard Deviation
What Standard Deviation means in Psychology A-Level, as defined for Pearson Edexcel.
Definition of Standard Deviation
A descriptive statistic that quantifies the amount of variation or dispersion of a set of data values around the mean.
Topics that use Standard Deviation
- Topic 9: Psychological skills (Pearson Edexcel A-Level)
Related terms
Using Standard Deviation in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
Practise Psychology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Psychology A-Level terms7 days Premium · Then free forever · No card, no charge