What MI principle affirms positive results by focusing on patient successes?

The principle that affirms positive results by focusing on patient successes is the one that emphasizes supporting self-efficacy. Supporting self-efficacy involves fostering a patient's belief in their ability to achieve specific goals and overcome challenges. By recognizing and celebrating the successes a patient has had, it enhances their confidence and motivation to continue making positive changes.

When a patient acknowledges their successes, it reinforces their capability and encourages them to persist in their efforts, creating a cycle of positive reinforcement. This principle is particularly important in motivational interviewing, where building the patient's self-confidence is critical for facilitating behavior change and improving health outcomes. By focusing on what the patient is doing well, the provider can help the patient feel empowered and capable of taking further steps toward their health goals.