Bias of the exposure health effect association introduced by selection both at cohort formation and later selection into subgroups within the formed cohort can arise when these forms of selection are related to the outcome and the exposure under study.
While this is appropriate for our interest in local adaptation, it may well miss loci affected by other forms of selection, such as balancing selection or species-wide selective sweeps.
Yet, our results are not able to distinguish between these different forms of selection, but rather distinguish them from patterns that can be explained by population structure, loss of selective constraint, and selection on adjacent genes.
I don't believe in selection at all and I don't like the ever more ingenious ways of skewing admissions criteria to achieve forms of selection.
But they should not be given control over admissions, since they are not neutral in this process and stand to gain from subtle forms of selection.
I don't believe in selection at all and I don't like the ever more ingenious ways of skewing admissions criteria to achieve forms of selection.
One significant moment came in the 60s with the move towards comprehensive education, but although the 11-plus was phased out in most parts of the country, more subtle forms of selection have continued to stoke division.
Rabbi Dr Jonathan Romain, chair of the Accord Coalition, representing campaigners against faith schools, welcomed the development: "Selecting pupils on religious grounds is inherently more complex and open to abuse, gaming and error than other forms of selection.
But there is a strong incentive for schools to engage in subtle forms of selection, since attracting wealthier and brighter pupils is a quick way to rise up the league tables.
My own sense is that ultimately the island will require more explicit forms of selection if it is to thrive as something more than a park or a place of summer entertainments.
A further 10% wanted it left at 40% and just under a third wanted a 50% top rate (this was before Labour's commitment to keeping existing income-tax rates).True, nearly three-quarters of respondents (74%) wanted to end all forms of selection for state schools and, contrary to party policy, 48% wanted to return the water industry to public ownership.
