This study examines depressed patients' perspectives on non-improvement in psychotherapy by combining quantitative and qualitative data. Quantitative pre-post outcome scores indicated no reliable change in depression symptoms for 19 patients. Qualitative interviews with these patients were then analyzed using grounded theory. The analysis found that from patients' perspectives, non-improvement involves feeling stuck between knowing and doing, resulting in a stalemate. Patients experienced some positive changes from therapy like increased mental stability and insight, but attributed remaining issues to therapy limitations and external difficulties. Integrating the quantitative and qualitative data provides a more nuanced understanding of non-improvement than outcome scores alone.