Introduction: A poor therapeutic relationship, low insight and lack of motivation are associated with poor adjustment (to symptoms, treatment, and environment) in patients with schizophrenia. In order to achieve better compliance and results, the therapeutic relationship and insight should be developed by increasing the motivation of individuals.

Purpose: This study examines the effect of Interpersonal Relations Theory-Based motivational interviews on functional recovery and insight levels of patients with schizophrenia.

Methods: This single-blind, randomized controlled study used the simple randomization method and employed a pretest-posttest control group design, which is an experimental research design. The study was conducted at Pamukkale University, Health Research and Application Center, Habib Kızıltaş Psychiatric Hospital from November 2019 to June 2020 and included 40 individuals (20 in the experimental and 20 in the control groups). Study data were collected using a personal information form, the Functional Remission of General Schizophrenia Scale (FROGS) and the Scale for Assessing the Three Components of Insight (SAI). The researchers carried out a 6-session Interpersonal Relations Theory-based motivational interview with the participants in the experimental group. No intervention was made to the control group. The data were analyzed on the basis of pre-intervention, post-intervention and 3 months after the intervention (follow-up).

Schizophrenia is a severe mental illness that causes problems in the thoughts, feelings, and behaviors of the individual, impairs the ability to evaluate reality, has a unique world and keeps the individual away from social life, causes difficulties in his family and social environment, relapses, and is a progressive, severe mental illness when regular treatment is not applied.

It is reported that individuals diagnosed with schizophrenia have poor insight into how they evaluate the symptoms of the disease and what they expect from treatment. One of the problems of individuals diagnosed with schizophrenia is lack of motivation. It is stated that this may be caused by the dopaminergic system. This situation can cause individuals to have difficulties in social life.

In this context, it is important to evaluate motivational processes in the treatment of schizophrenia and to plan and implement initiatives that will increase motivation. A poor therapeutic relationship, low insight and lack of motivation are associated with poor adjustment (to symptoms, treatment, and environment) in patients with schizophrenia. In order to achieve better compliance and results, the therapeutic relationship and insight should be developed by increasing the motivation of individuals. Nurses need to establish a therapeutic relationship in order for the nursing care to produce effective results in the recovery process of these patients.

In this study, it is thought that Interpersonal Relations-Based Motivational Interviewing can be effective in increasing the symptom management, social-occupational functionality, adherence to treatment, daily life skills and insight levels of patients with schizophrenia, and may shed light and guide psychiatric nursing interventions.

Inclusion Criteria:

• To be at least primary school graduate,
• Living in the city center of Denizli,
• Being open to communication and cooperation.
• Being between the ages of 18-65,
• Being in remission (period without psychotic exacerbation),
• To have a diagnosis of schizophrenia according to DSM-5 (The Diagnostic and Statistical Manual of Mental Disorders) diagnostic criteria.

Exclusion Criteria:

• Being under the age of 18 and over the age of 65,
• Being illiterate in Turkish,
• Having Mental Retardation,
• Being diagnosed with a mental illness other than schizophrenia according to the DSM-5 diagnostic criteria,
• Being in a psychotic attack period.

Study results will be announced in a publication.

Findings can be shared after the study has been published.

The sociodemographic and disease-related characteristics of the participants, the pre-post-test and follow-up findings including the answers to the research questions and statistical analyzes will be shared.

Participants and caregivers were not informed about intervention content and measurements.