Geriatric Depression Scale

The Geriatric Depression Scale (GDS) is a psychological assessment tool designed to measure depression in older adults. The scale was first developed by J.A. Yesavage and colleagues in 1982, and has since been used extensively in both clinical and research settings.

Overview

The GDS is a self-report measure that consists of 30 items. Each item is a yes/no question related to the individual's feelings over the past week. The scale is specifically designed to avoid focusing on somatic symptoms, given that these can often be attributed to physical health problems common in older adults. Instead, the GDS focuses on cognitive and affective symptoms of depression.

Scoring and Interpretation

Scores on the GDS range from 0 to 30, with higher scores indicating greater levels of depressive symptoms. A score of 0-9 is considered normal, 10-19 indicates mild depression, and 20-30 indicates severe depression. It is important to note that the GDS is a screening tool and not a diagnostic tool. Therefore, a high score should be followed up with a comprehensive clinical assessment to confirm a diagnosis of depression.

Validity and Reliability

The GDS has been found to have good psychometric properties, including high internal consistency and good test-retest reliability. It has also been validated against other measures of depression, such as the Hamilton Depression Rating Scale.

Limitations

While the GDS is a valuable tool for identifying depression in older adults, it does have some limitations. For example, it may not be as effective in individuals with cognitive impairment or those with a high level of physical illness. Additionally, it does not assess for suicidal ideation, which is an important component of depression.

See Also

• Depression (mood)
• Geriatrics
• Psychological assessment
• Hamilton Depression Rating Scale