Final answer:
Gestalt therapy, a psychological approach focusing on the whole individual, has weak empirical support due to historical disruptions to its development and limited research. While some Gestalt principles still influence sensation and perception studies, modern therapies with empirical support often include examinations of the unconscious.
The correct option is:
(c) is becoming stronger.
Step-by-step explanation:
However, due to their forced emigration and the rise of behaviorism in the United States, they were unable to continue their research on a large scale, which limited the empirical development of Gestalt therapy.
Furthermore, modern empirical evidence tends to support therapies that include aspects of unconscious processes and relationships, as some current practices in psychotherapy that examine these aspects have been shown to be effective. Nonetheless, some principles of Gestalt psychology remain influential particularly in the areas of sensation and perception.The correct option is:
(c) is becoming stronger.