What do scientists need to look at before developing an argument

Answer: validity of data, claims, hypotheses, and observations

Making an argument in the scientific method is performed while communicating the result to the scientific community either through conferences or through scientific journals.

The argumentation is done to test the authenticity of the scientific method as well as the verification of the scientific steps which is to be followed in the scientific research.

Since the argumentation is done by the people of the scientific community therefore, they look into the steps of the scientific methods like the observations, hypothesis, results, conclusion and the evidence.