BACKGROUND Numerous cross-sectional studies have examined neighborhood effects on health. Residential selection in adulthood has been stressed as an important cause of selection bias but has received little empirical attention, particularly its determinants from the earlier life course. The present study aims to examine whether neighborhood, family, school, health behaviors and health in adoles...

This paper investigates the effect of parents’ current income and long-term family characteristics on individuals’ highest educational qualification obtained by age 26 using UK data from the 1970 British Cohort Study. The issues of the possible sample selection bias produced by the not completely random omission of current family income and that of its potential endogeneity are addressed, using...

BACKGROUND Selection bias in HIV prevalence estimates occurs if non-participation in testing is correlated with HIV status. Longitudinal data suggests that individuals who know or suspect they are HIV positive are less likely to participate in testing in HIV surveys, in which case methods to correct for missing data which are based on imputation and observed characteristics will produce biased ...

Context: A potentially important, but neglected, reason for effort overruns in software projects is related to selection bias. Selection bias–induced effort overruns occur when proposals are more likely to be accepted and lead to actual projects when based on effort estimates that are too low rather than on realistic estimates or estimates that are too high. The effect of this bias may be parti...

We consider the description of the clustering of halos for physically-motivated types of non-Gaussian initial conditions. In particular we include non-Gaussianity of the type arising from single field slowroll, multi fields, curvaton (local type), higher-order derivative-type (equilateral), vacuum-state modifications (enfolded-type) and horizon-scale GR corrections type. We show that large-scal...