After you have established a research question, which of the following should you do first?

1. design an experiment

2. put your research question into a null and alternative hypothesis

3. determine the variables you will measure

4. choose a statistical test to use

After you have established a research question, which of the following should you do first?

put your research question into a null and alternative hypothesis

Explanation:

It expedient that after research question has been established, one needs to make a null hypothesis and alternate it, this gives a clue of what the researcher intends to find or problem to be solved.