A 20-item self-rating scale for screening recent depressive symptoms across mood, body, activity, and psychological experience.
The SDS, commonly known as the Zung Self-Rating Depression Scale, is a 20-item self-report screening scale. It asks about recent mood, sleep, appetite, energy, activity, and thoughts so people can notice possible depressive symptom signals earlier.
This online version is designed for self-awareness and early screening, not for diagnosis. The result page shows your raw score, SDS standard score, symptom range, dimension breakdown, anonymous score distribution, and suggested next steps.
The scale observes depressive symptoms from four practical angles
Sadness, crying, irritability, discouragement, and emotional heaviness.
Sleep, appetite, fatigue, body disๅฎๆๆฏๆ, heartbeat, and physical energy.
Whether daily actions feel slower, harder, restless, or difficult to complete.
Thinking clarity, hope, self-worth, life ๆไนๆ, and interest in usual activities.
You will answer 20 short statements, one per page. Choose how often each experience appeared recently. The raw score is converted into an SDS standard score, then mapped into normal, mild, moderate, or severe symptom ranges.