Which term best describes the type of theories based on abstract constructs?

The term that best describes theories based on abstract constructs is conceptual models. Conceptual models are frameworks that represent ideas, concepts, or systems through abstract components and the relationships between them. They help in understanding complex phenomena by providing a structured way to visualize and think about the relationships among different elements within a theoretical framework.

This type of model allows researchers and practitioners to communicate complex concepts clearly and assists in the development of hypotheses or interpretations related to those abstract ideas. Unlike empirical theories, which are grounded in observable phenomena and data, or pragmatic theories that focus on practical applications, conceptual models emphasize the abstraction necessary to formulate and discuss theoretical ideas.

Using conceptual models is essential in fields where formal measurements might be challenging, enabling the exploration of ideas in a more flexible and imaginative way.