Sentences with phrase «selection bias on»

There is a natural selection bias on the site in that those who got burnt are not here to tell their stories, so all we hear are the success stories (which are helpful and inspiring, but would ideally be balanced by failures).

However, the potential impact of selection bias on exposure and outcome variables was evaluated in a study that tested eight different exposure — outcome associations [32].

The effects of sample selection bias on racial differences in child abuse reporting.

When writing your resume, you will not need to include any personal information that may aid in selection bias on the part of the recruiter or hiring manager.

When you say that you will only supply data to people who are «legitimate» it would be possible that there is selection bias on your part, which would not be productive.

Not exact matches

The danger is focusing on an idea that's too much of a personal hobby, they say, because there's too much of a selection bias to make you think it's something important, or worth doing.

Of course, the number of owners on Facebook versus, say, teachers, may be inflated due to self - selection bias.

Whatever the mechanism, the authors acknowledge that part of what may be going on is simply a selection bias.

Selection bias, wherein we draw incorrect conclusions based on looking at only a portion of a data set, is just as common.

The study emphasizes controlling for any self - selection bias associated with the type of investors who seek advice, and focuses on common stock holdings to avoid any conflicts associated with mutual fund incentives.

(And yes, I realize there is a selection bias based on who chooses to write a comment, but still...)

Your graph on how much a client should bet in order to cover his fees is meaningless and is guilty of Ma's rule number 2; selection bias.

Previous studies of the effect of breastfeeding on morbidity among full - term infants have not always accounted for selection bias that may result if infants who are breastfed are inherently healthier than bottle - fed infants.22 In the current study, the VLBW infants» ability to breastfeed did not reflect better health status as both human milk and infant formula were provided via gavage feeding especially during early enteral feedings.

These studies were prospective and minimized selection bias (randomized controlled trials on this topic are not practical on ethical grounds).

In one study, a protective effect of breast milk on blood pressure was observed when 26 percent of the original cohort were followed up at ages 13 — 16 years (15), but not when 81 percent were examined at ages 7.5 — 8 years (16), suggesting either the possibility of selection bias in the later follow - up or an amplification of the breastfeeding — blood pressure association (49).

That liberals are just as guilty of antiscience bias comports more with accounts of humans chomping canines, and yet those on the left are just as skeptical of well - established science when findings clash with their political ideologies, such as with GMOs, nuclear power, genetic engineering and evolutionary psychology — skepticism of the last I call «cognitive creationism» for its endorsement of a blank - slate model of the mind in which natural selection operated on humans only from the neck down.

Gifted education programs have long been subject to criticism that their selection criteria, which often rely on IQ testing and other measures of cognitive ability, are biased against students of color and poor children.

The authors do acknowledge some limitations in their paper, specifically that it relied on self - reporting, and that a selection bias may have been caused by pregnant couples being more willing to respond than disappointed couples.

In some cases, such as in the selection of participants for studies on suicide, the bias in the original studies may have underestimated the association between access to firearms and suicide, because both study and comparison groups were recruited from health care settings where they may have been seeking treatment for suicidal planning.

To prevent disparities in jury rulings, more attention needs to be placed on the pre-trial aspects of the jury selection process, such as minority underrepresentation and measuring bias in potential jurors.

The Princeton Review bases its guidebooks on unscientific administrative survey data obtained from colleges as well as surveys of current students which, Reback and Alter say, are notorious among college administrators for selection bias.

Various manipulations of the data showed that two major potential confounding factors, SNP ascertainment bias and weak selection at presumably - neutral sites, had little influence on the inferences from their data set.

They specifically wanted to answer the question is «the temperature rise on land improperly affected by the four key biases (station quality, homogenization, urban heat island, and station selection)?»

We show that in fact, so long as the disease is sufficiently polygenic, the selection coefficients of individual loci are insensitive to the fitness cost of the disease, and instead depend on the distribution of effect sizes and the degree of mutational bias toward increased disease liability.

By consistently generating specific environmental states, niche construction co-directs adaptive evolution by imposing a statistical bias on selection.»

The sexual selection mechanism hypothesis suggests an indicator function based on the observed male - biased blister beetle consumption and male cloaca inspection by females.

The key is being aware of our selection bias to seek only positive news and data on the subject or supplement we're interested in, but ignore negative or adverse ones.

These results raise questions about treating on - line venues (or even on - line dating sites) as a homogeneous lot and also underscore the potential for selection bias and the importance of addressing it.

But this type of «selection bias» could influence effects on earnings and other long - term outcomes.

After controlling for student and peer attributes and for selection bias, we still find a substantial positive and statistically significant effect of attending a network school on student achievement.

A simple test for selection bias looks at the impact of lottery offers on the probability that lottery participants contribute MCAS scores to our analysis sample.

Unfortunately, plenty of statistical problems besides selection biases continue to wreak havoc on education research.

The cases of extreme selection bias — where there is by design no variation on the dependent variable — are easy to deal with: avoid them!

Based on a series of experiments, [5] simulation studies, [6] and statistical tests, [7] elementary school value - added models do seem to address the selection bias problem well, on average.

Using an instrumental variables approach to control for selection bias, the results suggest an increase in collegiate class size leads to an increase in dropout rates and a reduction in on - time degree completion, but no change in long - run degree completion.

So on the whole, charter schools in both cases tend to reflect the demographics of the local neighborhood school, and there does not appear to be a selection bias.

One indicator that this study may sufficiently account for both selection and omitted variable bias, is that its results are consistent with randomized studies on schools choice that also find no relationship between choice and student outcomes 7 8 9.

This result confirms my hypothesis and corroborates other literature indicating that after accounting for selection bias, on the whole choice schools do not outperform traditional public schools.

Selection bias — the problem that plagues all school choice studies To investigate the effect that school choice has on student outcomes, researchers leverage statistical tools to try to make the most accurate comparison.

My hypotheses going in to this study is that when first looking at choice schools on student achievement I would see a positive effect because of selection bias; I expected that the students in choice schools would be systematically different from those in traditional public school due to parental factors that affected their selection of a choice program.

Student sorting and bias in value - added estimation: Selection on observables and unobservables.

Our process focuses on implementing multiple investment themes through sector bias and security selection — supported by extensive proprietary fundamental research and quantitative analysis.

[I regularly reply to readers» emails where I have to stress stock selection vs. valuation, or vice versa, depending on their biases.

Fortunately, I believe there's plenty of stock selection techniques, or filters, you can employ — some of these are all about focusing on your existing (and / or unconscious) negative investing biases, while others are more about promoting positive biases.

In view of the compelling US and global evidence that both sensible and nonsensical strategies outperform for the same reasons (value and small - cap biases), the authors conclude that potential investors would do well to base strategy selections largely on a comparison of explicit and implicit implementation costs due to portfolio turnover.

The study emphasizes controlling for any self - selection bias associated with the type of investors who seek advice, and focuses on common stock holdings to avoid any conflicts associated with mutual fund incentives.

This difference is likely attributable to a selection of bias in terms of which animals are listed on Petfinder, and the fact that certain animals are removed from the website by shelters for reasons that are often unknown to Petfinder (perhaps because they were euthanized).

The selection of works includes large - scale prints exploring the negative effects of stereotypes on the lives of people of color and how these stereotypes give rise to biased laws and ideologies.

A selection of Cindy Sherman's legendary «Untitled Film Stills» serves as a bridge between the necessarily aggressive second - wave feminism of the 1960s and»70s and our modern era, where women have emerged on the mainstage of artistic innovation but still find themselves struggling with deep cultural undercurrents of bias and systemic suppression.

Louis Vuitton's City Guides share the Maison's unique take on the world, with a selection of addresses chosen with originality and a touch of bias.