Preregistration
Preregistrations help to define and control your research plan by submitting it in advance to the scientific community. In hypotheses testing, it is a necessity to define the reseach question beforehand. Preregistration can help to accomplish this and avoid any unethical adjustments. If you are interested in reading more on theis aspects have a look at this article.
One way to preregister is over online platforms such as the Open Science Framework. After creating an account you can upload your preregistration there directly. Another way would be to preregister at the journal directly. This has the benefit of a higher acceptance rate but also comes with the disadvantage of being time intensive.