Sentences with phrase «because of selection bias»

Only one was a national sample, and this was research by telephone survey (Donnelly & Finkelhor, 1992), and while Janet Johnston's clinical sample was included, it was discounted by Bauserman (it clearly contra - indicated joint custody) as, apparently, unreliable because of a selection bias for conflict.

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.

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.

Wenger selection is biased because regardless of previous performance, Ozil, Ramsey, and Xhaka will always start ahead of anyone

Other strengths of the underpinning cohort study include high participation by midwifery units and trusts in England; the minimisation of selection bias through achievement of a high response rate and absence of self selection bias because of non-consent; and the ability to compare groups that were similar in terms of identified clinical risk.12 The economic evaluation was conducted according to nationally agreed design and reporting guidelines.15 26 Collection of primary unit cost data was thorough and accounted for regional differences in care patterns.

That type of study constitutes a drawback because case - control studies are subject to misclassification as a result of recall bias and to selection bias.

Because of my interest, the selection is biased towards politics, some of which can be incredibly obscure, like, «Can Labour's opinion poll lead really only be three points?»

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.

«But human trials of sitagliptin have been limited to date because they have lacked important tools like a placebo arm and allocation concealment (in which researchers do not know what the next treatment allocation will be, further preventing selection bias in testing),» said Loomba.

Whereas these studies are limited because of their clinical measures and possible selection bias, they show that many clinicians already find that it is feasible to implement the LCD in clinical practice.

I think you suggest that you think that selection bias is a good thing because you think some sort of voluntary choice needs to be a part of the analysis.

The pre-adoption estimates should all be zero in the absence of selection bias because the treatments we study have yet to be implemented.

A common criticism of value - added measures is that some teachers are at a disadvantage because they are assigned students who are more difficult to educate, even after the measures account for students» prior test scores; this is what researchers call selection bias.

As discussed above, these variables are used to account for the potential selection bias introduced because of the differences between the populations at choice schools compared to traditional public schools.

Some may have attracted this attention because they have become expensive for other reasons, a consequence of selection bias.

Such rules are also a bit eerie because they remind me of short - term trading and might expose one to negative selection bias (sell your winners, hold your losers) if one does the math wrong.

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).

I also stumbled on Guy Pearse's lecture on this (below) and find it hard to refute (of course there's selection bias by me because this was my concern from the get - go).

My cynical take is they excluded those categories because they'd overwhelm the others and highlight the problem of selection bias for reported MMEs.

Because the memetic explanation for CAGW rests upon social and evolutionary fundamentals (e.g. the differential selection of self - replicating narratives, narrative alliances, the penetration of memes into the psyche causing secondary phenomena like motivated reasoning, noble cause corruption and confirmation bias etc.) it is not dependent upon politics or philosophies of any stripe, which tend to strongly color most «explanations» and typically rob them of objectivity.

The selection of 1950 through 2006 significantly biases the outcome of this study because the U.S. was entering a cooling period in the 1960s and 1970s which creates the illusion of unusual subsequent warming from 1980 through 2006.

This is selection bias, an elementary statistical bias — you can not, after the fact, change a given element of a projection or prediction, because any change will be influenced by the performance of the projection so far.

A selection of potential defendants is beneficial because it opens up the opportunity to select a venue with fewer biases against or other inconveniences for your client.

Also, we used objective approaches to quantify neighbourhood attributes that allowed us to partially control for potential reverse causality due to depressed individuals tending to exhibit negative cognitive bias resulting in negative thoughts and perceptions.65 Residential self - selection bias is likely to be a trivial source of reverse causality in this study because Hong Kong's high levels of population density (6760 people / km2) and low percentage of developed land (less than 25 %) 66 limit most residents» choice of accommodation and 37 % of Hong Kong older adults live in public rental housing.67 Given the satisfactory response rate and the level of similarity in depressive symptoms and sociodemographic characteristics of participants recruited from two types of recruitment centres, the findings from this study are likely to be generalisable to the population of Chinese Hong Kong older adults matching the study eligibility criteria and other populations of older adults living in similar ultra-dense metropolises of Southeast Asia.