What is the purpose of a hypothesis in scientific research?

The purpose of a hypothesis in scientific research is to provide a testable statement or prediction based on observations. A hypothesis serves as a foundational element in the scientific method, guiding the direction of an experiment. It allows scientists to make specific predictions about what they expect to happen when they manipulate certain variables. This prediction is crucial because it can be tested through experimentation and observation, leading to a clearer understanding of the relationship between variables. A well-formed hypothesis can help researchers design an experiment, collect data, and analyze results, all while remaining focused on answering a specific scientific question.