The researchers developed a new method called Totdev to better estimate the long-term stability of oscillating signals. Totdev can accurately measure noise levels and types in frequency oscillations over extended periods. It improves confidence in stability estimates, is less affected by linear frequency drift, and breaks down frequency residuals for analysis. By using Totdev, scientists can interpret stability plots more effectively and calculate confidence intervals accurately. This method unifies frequency stability statistics with standard deviation, making it easier to understand and apply in real-world scenarios.