A brief self-assessing depression scale

Area of Science:

• Psychological Assessment
• Clinical Psychology
• Psychiatry

Background:

• Depressive symptomatology requires reliable self-assessment tools.
• Existing scales like the Zung Self-Rating Depression Scale (SDS) are widely used.
• There is a need for brief, efficient, and easy-to-complete depression assessment instruments.

Purpose of the Study:

• To compare the Wang-Self-Assessing Depression Scale (SADS) with the Zung Self-Rating Depression Scale (SDS).
• To evaluate the reliability and ease of completion of the SADS.
• To assess the clinical utility of the SADS in diagnosing and monitoring depression.

Main Methods:

• A comparative study involving 93 participants (normal volunteers and patients with varying depression levels).
• Administration of both the Wang SADS and Zung SDS to all participants.
• Statistical analysis using paired t-tests and correlation to compare scale scores and completion metrics.

Main Results:

• No significant difference in mean scores between SADS and SDS across different depression levels.
• A significant positive correlation between SADS and SDS scores in both normal and depressed subjects.
• The Wang SADS was completed significantly faster with fewer errors and requests for assistance compared to the Zung SDS.

Conclusions:

• The Wang SADS demonstrates comparable reliability and validity to the Zung SDS.
• The SADS offers significant advantages in terms of completion time and ease of use.
• These findings support the clinical utility of the Wang SADS for diagnosing, evaluating, and monitoring depression in both inpatient and outpatient settings.