مقایسهٔ روش‌ها

	مقیاس تأثیرات بالینی جهانی (CGI)	مقیاس درجه‌بندی افسردگی همیلتون (HAM-D)
حوزه	روان‌شناسی بالینی	روان‌شناسی بالینی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1976	1960
پدیدآور	William Guy	Max Hamilton
نوع	Clinician-rated assessment	Clinician-rated interview scale
منبع بنیادین	Guy, W. (1976). ECDEU Assessment Manual for Psychopharmacology. Rockville, MD: National Institute of Mental Health, US Department of Health, Education, and Welfare.	Hamilton, M. (1960). A rating scale for depression. Journal of Neurology, Neurosurgery & Psychiatry, 23(1), 56–62.
نام‌های دیگر	CGI, CGI-S, CGI-I	HAM-D, HDRS, Hamilton Rating Scale for Depression
مرتبط	4	5
خلاصه	The Clinical Global Impressions Scale is a clinician-administered two-part assessment developed by William Guy in the ECDEU Assessment Manual (1976) to provide rapid, global ratings of illness severity and treatment response. Part 1 (CGI-Severity) rates current severity; Part 2 (CGI-Improvement) rates change since treatment initiation. The CGI is among the most widely used global outcome measures in psychiatric research and clinical practice, prized for its brevity, interpretability, and ability to capture clinician expertise and nuanced clinical judgment.	The Hamilton Depression Rating Scale, published by Max Hamilton in 1960, is a clinician-administered interview assessment of depressive symptom severity. The most common version contains 17 items (HAM-D-17), though 21-item and 24-item versions exist. It is considered the gold standard outcome measure in antidepressant drug trials and remains the most cited depression rating scale in the psychiatric literature. Unlike self-report measures, HAM-D requires clinician judgment and observation, making it particularly valuable in research settings where standardized measurement by trained raters is essential.