A number of mental-test theorists have called attention to the fact that increasing test reliability beyond an optimal point can actually lead to a decrement in the validity of that test with respect ...

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) ...

Objective: To evaluate the reliability and validity of a brief physical activity assessment tool suitable for doctors to use to identify inactive patients in the primary care setting. Methods: ...

2 Department of Family Practice (Allan McGavin Sports Medicine Centre) and School of Human Kinetics, University of British Columbia, Vancouver, Canada 3 Department of Physiotherapy, LaTrobe University ...