The Geriatric Depression Scale (short form) is available at http://www.stanford.edu/~yesavage/GDS.html
The Beck Depression Inventory Fast Screen (BDI-FS) for medical patients is copyrighted and is available for a fee from Pearson (formerly Hartcourt Assessment).
The Physicians Health Questionnaire (PHQ-9 ) is copyrighted, and is available in English and Spanish. To read and agree to the terms of usage, locate scoring instructions and register for download go to http://www.depression-primarycare.org/clinicians/toolkits/ .
The Center for Epidemiologic Studies Depression Scale-Short Form (CESD-SF) QOL tool is used to measure current depressive symptoms. Items on the short forms contain simple vocabulary in short sentences. The CESD-SF can be administered by self-report or interview. A pdf version is available for download at http://patienteducation.stanford.edu/research/cesd10.pdf .
RAND Depression Screener was developed for RAND's Partners in Care study. This self-administered depression screener is available in both English and Spanish versions. http://www.rand.org/health/surveys_tools/depression/index.html