Trials are the gold standard for internal validity, but the problem is the lack of external validity [ 73].
The diagnostic tool that checks data quality and information use through record review and observation is considered to be a gold standard for assessing validity, as is the facility checklist which is used to measure the availability of infrastructure and equipment through observation.
A "gold standard" for assessing criterion validity in measures of body awareness does not exist.
Since there is no gold standard for "back pain", validity could not be established.
42 52 54 Replication has become the gold standard for assessing the validity of statistically significant results from association studies.
Whilst statistical generalizability may be the gold standard for assessing the validity of claims drawn from quasi-experimental studies, analytic generalizability is the yardstick for case study research.
However, there is no other measure to use as the gold standard for determining the validity of a fall risk assessment tool.
Because there is no universally accepted gold standard for assessing criterion validity of quality of life measures and a key property of these instruments is their contribution to needs assessment, data were collected on perceived treatment needs as a proxy.
11 13 However, the use of RCTs as a gold standard for judging the validity of PCD-based studies is questionable: results may differ due to the very different contexts of RCTs and observational data; for example, drug regimes, patient characteristics and use of additional or combination medications may differ radically in the real-world setting.
A random sample of 50 patients from each HCC was drawn from the selected patients and the information on diagnoses and prescribed drugs in the free text part of the electronic PDIII journal was used as gold standard for assessing the validity of the ICD codes and prescribed drugs found in the SPCD.
There is no gold standard for the assessment of validity, so therefore the validity of measures are assessed in relation to each other, and guided by clinically specific indicators.
