Psychology A-Level
Internal Validity
What Internal Validity means in Psychology A-Level, as defined for Pearson Edexcel.
Definition of Internal Validity
The degree to which a study ensures that the observed effects on the dependent variable are caused solely by the independent variable.
Topics that use Internal Validity
- Topic 9: Psychological skills (Pearson Edexcel A-Level)
Related terms
Using Internal Validity 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.
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