What will validation validate?
The initial validation study was fatally flawed, but this formula has been subjected to a validation study subsequently (showing poor performance).
The reporting of the validation against the Broselow tape is flawed and does not permit verification.
Apart from non-spatial coincidence in the ROIs drawn with each technique, which is a potential flaw in any such validation studies, two reasons for lower R2 in our study may be raised.
These new challenges will, I believe, serve to increase uncertainty still further in the short-term and, thus, affect participation in an approach that is worthy but, in my opinion, critically flawed through a lack of prospective validation [ 5].
Thus, there is little reason to believe that our cohort was flawed by selection bias.Our findings regarding validation of diagnoses compare favorably with a study from the Danish Hip Arthroplasty Register involving 459 patients (Pedersen et al. 2004).
CheShift-2 constitutes a fast and accurate validation tool with which to determine the existence of local flaws in protein models.
Despite numerous methodological flaws in previous study designs and the lack of validation in primary care populations, clinical tests for identifying acromioclavicular joint (ACJ) pain are widely utilised without concern for such issues.
For this purpose, the Verification and Validation (V&V) of UML diagrams play a very important role in detecting flaws at the design phase.
Because of the overall uncertainties in the dose estimates as well as in the validation measurements, the validation process usually provides only an indication of substantial flaws in the primary measurement methods or parameter values (when models are used) used for dose reconstruction.
In particular, the notorious lack of reproducibility of lists of detected genes across platforms and laboratories, as well as validation problems associated with prognostic signatures, is frequently attributed to this "flaw" of microarray technology [ 1, 2].
