Your English writing platform
Discover LudwigExact(2)
The criterion of longitudinal discordance in MZ twins represents a severe selection measure, as only 18 of the 1966 pairs with longitudinal data available meet this criterion.
The presence of a severe selection bias is not likely since the reduced sample of 151 participants did not significantly differ from the total BELSTRESS II population in terms of general characteristics, self-reported occupational and leisure-time physical activity, or casual systolic BP at baseline.
Similar(58)
For an owner who makes his living from his wine, though, a truly severe selection may be out of the question.
The Chateau St. Jean was a big rich wine for a 1999, apparently the result of severe selection.
Severe selection led rapidly to a small cell size, more so than mild selection.
In thirteen studies there was probably no (severe) selection bias because subjects were randomly selected [ 7, 21] or because all subjects in the population were included.
So when the number of alleles is below equilibrium, as after a severe bottleneck, selection intensity is predicted to be higher than it is after equilibrium in allele number is achieved [ 2].
The formula is simple: small quantities of the best grapes; severe selection, which means cutting away excess bunches during the growing season and retaining only about half of the harvested grapes; new oak barrels every year; and hands-on care up to and including the bottling.
However, our IV results suggest that the OLS estimates are subject to severe selection bias from the fact that the choice of job search procedure is endogenous, associated with unobservable factors that affect the choice of informal versus formal procedures and that affect the earnings outcome.
This creates severe selection pressure and removes weak animals from the population.
The highly conserved miRNA may experience critical and severe selection during evolutionary fluctuation with multiple and complex gene expansion and frequent mutation, but important functional need ensured great selection advantage through the whole complex evolutionary history.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com