3.4.5 - Improving experimental method

Explain how an experimental method may be improved, including using additional apparatus to reduce errors.

Use - improving experimental method to connect the rule to the data and decision in the question.

This matters because - improving experimental method determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - improving experimental method to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Improving experimental method is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.