Is Longer Always Better? Clinical Validation of the Korean Altman Self-Rating Mania Scale With a Comparison of 5-Item Versus 11-Item Versions

Both the K-ASRM-5 and K-ASRM-11 demonstrated comparable levels of sound psychometric properties, which supports their continued usage in research and clinical practice. It is necessary to test potential utility of the K-ASRM-11 for symptom monitoring and treatment response because of its additional coverage of dark-side (hypo)manic symptoms, including irritability and impulsivity, which are considered important for the quality of life of patients with bipolar disorder.