A 58-year-old man with type 2 diabetes mellitus presents for device validation testing. Blood pressure is 138/82 mmHg, heart rate 76/min, temperature 37.2°C. A fasting glucose obtained via new handheld glucometer reads 156 mg/dL; simultaneous central laboratory reference assay measures 158 mg/dL. HbA1c is 7.8%. He denies recent hypoglycemic episodes. Investigators compare multiple paired readings from both methods to determine consistency between devices. Which measurement property are they evaluating?
- A)Criterion validityGABARITO
- B)Lead time bias
- C)Construct validity
- D)Attrition bias
- E)Internal consistency
Explicação
Criterion validity measures how well a new instrument agrees with an accepted external standard or gold standard. Comparing a point of care glucometer with the laboratory reference assay directly evaluates this property. Good criterion validity supports use of... Ver explicação completa e trilha adaptativa →