OCR GCSE Biology B · J257
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Evaluating Experimental StrategyAn experimental strategy is the plan for answering a scientific question. To evaluate it, ask whether the method could produce data that answer that question, then look for particular weaknesses in how the data were collected. A useful improvement has a reason: explain what would change in the results and why that would make the data better.