## 1.5 Formulate sub-questions

What information do you need to answer your main research question?
The main research question cannot be answered in one go. That is why you formulate a number of sub-questions based on your main research question. Sub-questions allow you to divide your complex main research question into smaller subjects. Each sub-question contributes to answering your main research question. Once you have answered all the sub-questions, it should be possible to answer your main research question as well.

- Your sub-questions have to meet the same requirements as the main research question.
- Your sub-questions are derived from your main research question - sub-questions help to answer your main research question.
- Sub-questions are less complex, but more specific than the main research question.
- How many sub-questions you need depends on the complexity of your research is.
- Place sub-questions in a logical order; this helps to structure and formulate your research. They create clarity for you as a researcher, but also for the reader who will read your research report later.
- A sub-question is not a question for a definition.

Tip:

- Enter your sub-questions in the Search strategy from for deskresearch.

Sub-questions: example

Below are a number of examples of sub-questions:

"What is the definition of obesity?"

This is not a good sub-question, because sub-questions are not about formulating definitions. The sub-question must always be necessary to answer your main research question.

"Does food supply have an effect on obesity?"

This is not a good sub-question, because it is a closed question. Sub-questions must be formulated in an open manner, so they cannot be answered with a simple 'yes' or 'no'.

"What measures are being taken in school canteens to combat obesity among students?"

"What influences students' food choices?"

These are good sub-questions, because they are less complex than the main research question, but more specific and help to answer the main research question.