Of course, there is a different option that illustrates the variability of the research directions – as mentioned at the beginning – the elaboration of ethyl acetate hydrogenation to ethanol [119],[119].
Is such variability perhaps protective of research subjects?
Differences between the results from previous studies or their interpretation could be explained by the variability of the adopted research designs, procedures (e.g. the periods of data collection, utilisation of recording devices) or data analysis methods.
A possible methodological reason is that clinical assessment of DSP is complex and, as a consequence, biological improvement in nerve function may not be detectable owing to the inherent error variability of the clinical research instruments used to measure DSP.
Central to the focus of these workshops was the issue of variability in research results associated with batch-to-batch variability in the phytoestrogen content of rodent diets that contain soy protein.
Application of the IMCI criteria has allowed greater uniformity in the terminology, diagnosis and treatment of ALRIs, but there remains a great deal of variability between research studies performed in differing settings that utilise ALRI outcomes.
It considers the role of collaboration and its effect on quality by studying the relationship between the level of interaction within research networks (collaboration) and the extent of variability of quality within those research networks.
A prediction model developed from a single study which does not reflect many sources of variability outside research conditions such as historical, geographic, methodologic, spectrum, and follow-up interval aspects described in Justice et al. [ 38], represents an internal validation [ 39].
Thus, although our focus has been on controlling variability in estrogenic compounds in rodent diets, we hope that other potential sources of uncontrolled variability in research results associated with components of the diet will also be addressed by laboratory animal diet manufacturers as new findings are published.
Multi product lines (MPLs) are an emerging area of research addressing variability management for such large-scale or ultra-large-scale systems.
