You will need to look beyond a discipline’s content when exploring whether it will be useful to your essay. You should also reflect on these other aspects of a discipline:
When you evaluate the contributions of each discipline and its particular theories, findings, methods or tools, you must evaluate each discipline against your research goals.
Questions for you to ask
You can use your RRS (Researcher's Reflection Space) to examine disciplines and seek advice from your supervisor or experts in relevant fields.