PurposeThis study aimed to investigate the effects of shared decision-making (SDM) training program on self-esteem, problem-solving ability, and quality of life in people with schizophrenia. Design and MethodsA quasi-experiment with a nonequivalent control group pre-posttest design was conducted. The self-esteem scale, the problem-solving ability scale, and the WHOQOL Scale were used. FindingsThe SDM training program was effective in improving their self-esteem, problem-solving ability, and quality of life in people with schizophrenia. Practice ImplicationsThe SDM training program can be used in various mental health fields such as hospitals, mental health centers, and rehabilitation facilities.