Aims and hypotheses

Aims and hypotheses.

• Candidates should be able to:.
• describe and write aims.
• describe and recognise null hypotheses and alternative hypotheses including directional (one-tailed) and non-directional (two-tailed) hypotheses.

This matters because aims and hypotheses determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply aims and hypotheses to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Aims and hypotheses is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.