Under what conditions should a research project be stopped?

A research project should be stopped if it consistently fails to meet its objectives despite adjustments, if it encounters insurmountable ethical concerns, or if it poses significant risks to participants or the environment. Additionally, if funding is no longer available or if the research is no longer relevant due to advancements in the field, it may be prudent to discontinue the project. Regular evaluations throughout the research process are essential to determine its viability.