Predictive ability is a research area that focuses on the ability of a model or method to accurately forecast or predict future outcomes or events based on past data or patterns. This area of research is commonly applied in various fields, such as finance, healthcare, marketing, and weather forecasting, to make informed decisions and improve planning and decision-making processes. The goal of predictive ability research is to develop and evaluate models that can effectively anticipate future trends, behaviors, or events with a high degree of accuracy and reliability.