Exact(2)
This represents a possible limitation because other performance issues (variability, PSFs) may be influential at other times.
But public health must operate at large scale, addressing the needs of large populations across clinical, behavior, and structural platforms, and necessarily entails crucial operational issues, variability, and complexity as well as consideration of resource requirements and sustainability.
Similar(58)
As detailed elsewhere in this supplement issue, variability in laboratory measurement procedures has been a major challenge in assessing nutritional status for folate and vitamin B-12 (1– 3).
The mannequin study (which removes the issue of subject variability) demonstrates good to excellent reliability and validity of the new instrument.
The use of a mannequin eliminated individual subject variability and facilitated a clear early understanding of instrument and operator measurement error, free from issues of sitting posture variability.
Finally, future developments, including further automation of the modelling process, improvements to methods of dealing with yarn interpenetration and issues of variability, are considered.
Issues of variability associated with the race of the patient were not addressed in this study because the low number of samples available does not provide enough power to make useful comparisons.
The practical steps outlined below mitigate the issues of variability.
Therefore, mixing cores and resection specimens in a single study is likely to suffer from issues of variability between types of specimens but still their data suggest that the relative expression levels within each type of specimen are maintained.
To revisit these issues, the variability in frataxin measurements was assessed in repeated samplings over several years by examining the relationship between the difference in frataxin level between the first and second samplings and the interval in time between samplings.
One practical approach used by skilled exercise interventionists that addresses the issue of variability is to ask an individual to complete a maximal number of repetitions in the final set for a particular exercise.
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