However, in forecast mode, GSDM outcomes inherit of the ECCC forecast biases, resulting in a poor performance when GEPS data were used as input, mainly due to the inherent rainfall depth distribution of the latter product.
In general, the variance is shown to be a more important factor than the learning bias in poor prediction performance [ 18].
Plotting this raw data as a histogram shows that DNA cohort origin is clearly responsible for systematic copy number calling bias in QPCR between "poor quality" DNA from the Portuguese and Ghanaian cohorts and "good quality" DNA from the UK, Danish and Czech cohorts (Figure 4a) but had no effect on copy number calling for the two PRT-based methods (Figure 4b and 4c) but.
For given values of F and d f, the sex ratio is more biased in the habitat that contributes less to the whole population: when the proportion of females nesting in GOOD habitats is higher than the proportion of females nesting in POOR habitats (Fg > 1- g), the sex ratio is more biased in the POOR habitat; when Fg < 1- g, the sex ratio is more biased in the GOOD habitat.
The unexpected association between no alcohol consumption and poor SRH may at least in part be explained by two phenomena: a selection bias (people in poor health because of alcohol may have stopped drinking) and a reporting bias, leading to an underestimate of alcohol consumption, especially among those with alcohol-related problems.
One likely hypothesis is a participation bias in that children with poor mathematics skills were less likely to take part in mathematics web-tests, and teachers of children with poor mathematics skills were less likely to submit mathematics ratings to TEDS.
The review of previous experiences of CBHI schemes points to a selection bias in most cases, with poorest people less likely to enroll as compared to least poor [ 7, 14, 15], and to challenges regarding achieving equity in access and uptake of services.
