Final answer:
The fourth step in the scientific method is data analysis, where scientists analyze the results of experiments to determine if the data supports or rejects the hypothesis.
Step-by-step explanation:
The fourth step in the scientific method is data analysis. After experimenting to test the hypothesis, scientists collect and observe data. Next, they perform data analysis, which may involve statistical, mathematical, or graphical methods to understand the results. It is through this analysis that scientists conclude, determining whether the data supports or rejects the hypothesis, allowing for adjustments if necessary. The general steps in the scientific method include observing, hypothesizing, experimenting, analyzing data, and drawing conclusions, with the possibility of revising the hypothesis based on the outcome of the experiments.