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A brief self-assessing depression scale.

R I Wang, S Treul, L Alverno

Journal of Clinical Pharmacology

|February 1, 1975

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The Wang-Self-Assessing Depression Scale (SADS) is a reliable and valid measure of depressive symptoms, comparable to the Zung Self-Rating Depression Scale (SDS). SADS offers a quicker, simpler alternative for clinical use.

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.

Related Experiment Videos

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.