The researcher is the one that is responsible for deciding which validity is prioritized in a study.
Who is a researcher?
This is the person that is responsible for the organizatioon of the study, he is the one that is is trying to carry out the experiment in order to find out the existence of a particular phenomenon.
The reseracher is the one that would have to carry out the systematic investigation into something. He does this in several ways. It could be through the scientific method or it could be non scientific. He may decide to use surveys, questionnaires or he may go to the fielkd himself.
Hence we can say that The researcher is the one that is responsible for deciding which validity is prioritized in a study.
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