Final answer:
The model that emphasizes adaptation of the environment and assistive devices to a patient's abilities to help them engage in meaningful activities is called the Ecology of Human Performance (EHP) model.
Step-by-step explanation:
The model being described by the COTA, focuses on modifying the patient's environment and providing assistive devices based on their abilities and aiming to facilitate their participation in meaningful occupational activities, is known as the Ecology of Human Performance (EHP) model. Unlike other models that may focus more directly on the patient's deficits, EHP is centered around the idea of adapting the environment and the task to fit the person's current skills and capacities. The goal is to enable participation by creating a better fit between the person and their environments, thus leveraging their motivation to interact with and master their surroundings.