Additionally, methodological factors lead to a variability in the estimates from epidemiological studies of mental health problems in children and adolescents.
The discrepancies between axes and studies may be related not only to methodological factors, but also to differences across axes regarding the mechanisms that influence hormone production.
This is just one of the methodological factors which requires to be standardised if real progress is to be made with tumour biomarker testing and application [68,87].
Differences in both environmental and methodological factors are known to alter the RPP estimated significantly, making it difficult to determine whether the underlying pollen productivity does actually vary, and if so, why.
Cultural, terminological, and methodological factors that contribute to inaccurate measurement of stillbirth and early neonatal death must be considered in designing surveys and other research methods to measure pregnancy, stillbirth, and other sensitive reproductive events.
Both clinical and methodological factors contributed substantially to the observed heterogeneity.
Several methodological factors may contribute to differences across study outcomes, such as the route of administration, test substance purity, test species or strain, timing of dosing or fetal evaluation, procedures used in dissecting and examining fetal hearts, statistical approaches applied to data evaluation, and generally uncharacterized interlaboratory variation.
Using both group and single subject analysis techniques we attempt to address several methodological factors that may contribute to some discrepancies in the perinatal lesion literature.
The discrepancy in results may be due to methodological factors, including sample handling, storage, and preparation prior to the performance of the biomarker assay.
