What should a hypothesis be based solely on?

A hypothesis should be based solely on empirical data collected by the investigator. This approach ensures that the hypothesis is grounded in observable and measurable evidence, which provides a solid foundation for scientific inquiry. By relying on empirical data, the investigator can formulate a hypothesis that is testable and supported by actual findings rather than speculation or personal beliefs.

Empirical data allows researchers to identify patterns, trends, or relationships that are crucial in developing a sound hypothesis. It facilitates a more objective examination of the phenomena in question and reduces the potential for bias that could arise from theoretical assumptions or personal experiences. In essence, a hypothesis that is rooted in empirical data is more likely to drive valid and reliable research, fostering conclusions that can be validated through experimentation and further analysis.