Key term for OCR GCSE Chemistry A, used in Interpreting and interacting with earth systems.
How well an experiment measures what it claims to measure, achieved by establishing a fair test through tightly managed control variables.
Validity appears in OCR GCSE Chemistry A revision content for Global challenges, especially Interpreting and interacting with earth systems and Data Interpretation.
Create a free account to access OCR GCSE Chemistry A revision notes, track progress, and practise related key terms.
