Short versions of the Geriatric Depression Scale (GDS) among widowed older people in Taiwan: Comparing their psychometric properties.

Hoyl et al's 5-item version was found to be more suitable than the other two versions of the GDS to assess the precise construct of depression. Meanwhile, van Marwijk et al's 4-item version can be used when the focus is on ADL performance. However, the conclusion should be interpreted with caution since the results were derived only from a widowed population in Taiwan. More research on this topic among other populations is thus needed to corroborate our conclusion.