Medical Care, Vol. 37, No. 9 (Sep., 1999), pp. 908-925 (18 pages) Objectives. Test the reliability and validity of 5 translations of the 34-item version of the MOS HIV for use in multinational ...

The feasibility, validity and reliability of the Time Trade-Off (TTO) and Visual Analogue Scale (VAS) methods in obtaining preference values for health states were compared in a random sample of the ...

LOS ANGELES, April 22, 2021 (GLOBE NEWSWIRE) -- Specimen validity testing (SVT) is performed on a urine drug screen specimen to measure the pH, and specific gravity, ensuring that no adulterant has ...