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 ...
Those of us in the business of psychological measurement use the terms reliability and validity a lot. You've probably seen those terms on the Psychology Today website (they appear thousands of times) ...
Purpose The 47-item positive mental health (PMH) instrument measures the level of PMH in multiethnic adult Asian populations. This study aimed to (1) develop a short PMH instrument and (2) establish ...
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