No. YMRS is not validated for self-report and cannot be administered as a questionnaire. It requires structured clinical interview and direct behavioral observation by a trained clinician. The clinician's observation of the patient's speech rate, motor activity, and appearance during the interview is integral to accurate scoring and cannot be replaced by patient self-report.

Dysphoric mania presents with prominent irritability (YMRS item 5 scoring high) rather than euphoric elevated mood (item 1 may score 0-1). Patients may deny feeling 'high' or euphoric but demonstrate pressured speech, decreased sleep, grandiosity, and poor insight. Always score all 11 YMRS items regardless of mood valence, and supplement with PHQ-9 or MADRS to capture depressive symptom co-occurrence (mixed features).

YMRS was validated in bipolar I manic inpatients. Its validity and normative data for bipolar II hypomanic episodes is less established. Hypomania is by definition less severe than mania, typically resulting in lower YMRS scores (often 10-18). For bipolar II monitoring, YMRS can be used but some clinicians prefer the Hypomania Checklist (HCL-32) or Young Mania Rating Scale with modified thresholds.

No. YMRS item 8 covers the full spectrum of abnormal thought content: grandiose ideas (score 2), paranoid ideas (score 4), ideas of reference (score 4), delusions (score 6), and hallucinations (score 8). Only scoring for frank delusions and missing grandiosity or paranoia significantly underestimates thought content severity and overall YMRS total.