Tony is convinced that he is Thomas Edison and suspects his neighbors of being spies attempting to steal his inventions. He believes they frequently break into his home to search for his invention plans when he is away. These symptoms are most indicative of which type of schizophrenia?

Explanation

The symptoms described—delusions of grandeur and paranoid beliefs about neighbors spying and stealing ideas—are characteristic of paranoid schizophrenia. Undifferentiated schizophrenia presents a mixture of symptoms without a dominant type. Hebephrenic schizophrenia primarily involves disorganized behavior and inappropriate affect. Catatonic schizophrenia is marked by motor disturbances rather than paranoid delusions.