AQA GCSE Psychology · 8182
Paper 1
Revise: Research ProceduresEffective controls improve internal validity: confidence that the IV, rather than another influence, explains the change in the DV. Standardised procedures also support replication and checks on reliability.
- Revise: Planning and Conducting Research
The extent to which a change in the dependent variable can confidently be attributed to the independent variable rather than an uncontrolled factor.