Practical significance

Practical significance refers to the real-world importance or meaningfulness of a research finding. Even if a study shows a statistically significant result—meaning it's unlikely to be due to chance—it might not lead to any noticeable change or benefit in everyday life. For example, a new medicine might lower blood pressure slightly, but if the reduction isn't enough to improve health outcomes or change treatment practices, it has limited practical significance. Essentially, practical significance asks whether the results are meaningful and useful outside the research setting.