The RNBI can provide diagnostic insights and assess treatment outcomes. During the recovery phase, the RNBI can track the rate of improvement based on the patient’s self-perception of daily problems. Understanding the level of the patient’s self-awareness is essential for diagnosis, as well as for treatment programs that depend on behavioral interventions. The responses are ecologically valid because most questions rely on the performance of daily functional activities. The RNBI uses two different types of questions to assess both premorbid and post morbid intrapersonal and interpersonal functioning.