Sentences with phrase «few statistical studies»

While there are few statistical studies on the number of overweight cats, it has been suggested that the numbers are similar to those in dogs, with up to 40 % of feline companions being overweight.

Not exact matches

But she also claims there are a few potential problems with Coughlin and colleagues» study — particularly its statistical (rather than case by case) approach to analyzing Kepler data.

By using their more powerful statistical approach, the researchers found clusters of mechanistically related genes where previous studies had merely suggested a few isolated SNPs.

In February, a similar study of PRO 2000 that only involved about one - third as many women found 30 % fewer HIV infections in the treated group, but with a p - value of 0.10 — a positive trend that did not reach statistical significance.

However, one of the panel's reservations was that ``... a statistical method used in the 1999 study was not the best and that some uncertainties in the work «have been underestimated,»...» The panel concluded «Based on the analyses presented in the original papers by Mann et al. and this newer supporting evidence, the committee finds it plausible that the Northern Hemisphere was warmer during the last few decades of the 20th century than during any comparable period over the preceding millennium.

During the past few years, various novel statistical methods have been developed for fine - mapping with the use of summary statistics from genome - wide association studies (GWASs).

However, those studies recruited only 25 or fewer participants for each group and had far less statistical power than the present study.

For instance, although most of the studies cited above do include statistical controls for peer effects (the mean characteristics of other student in a class or school), very few states or districts do so when generating value - added estimates.

I did a statistical analysis of shelters a few months ago which showed that a high live release rate does not correlate with a smaller community size — in fact, if anything, the study showed that a high live release rate is more likely in larger communities.

While statistical studies on extremes are plagued by signal - to - noise issues and only give unequivocal results in a few cases with good data (like for temperature extremes), we have another, more useful source of information: physics.

The weakness of the paper is in the fact that statistical properties of variability can be studied for the higher frequency effects corresponding periods of a few years at most, but beyond that there isn't appropriate data.

Next, very, very few studies in climate have anything like statistical solidity.

For example, some have found significant differences between children with divorced and continuously married parents even after controlling for personality traits such as depression and antisocial behavior in parents.59 Others have found higher rates of problems among children with single parents, using statistical methods that adjust for unmeasured variables that, in principle, should include parents» personality traits as well as many genetic influences.60 And a few studies have found that the link between parental divorce and children's problems is similar for adopted and biological children — a finding that can not be explained by genetic transmission.61 Another study, based on a large sample of twins, found that growing up in a single - parent family predicted depression in adulthood even with genetic resemblance controlled statistically.62 Although some degree of selection still may be operating, the weight of the evidence strongly suggests that growing up without two biological parents in the home increases children's risk of a variety of cognitive, emotional, and social problems.

Such analyses are an important part of psychiatric epidemiology, which in contrast with general epidemiology, deals with changing content of diagnoses and continuing refinement of taxonomic constructs.23 One important finding from these studies on TRAILS data was that only few adolescents had exclusively DSM - IV anxiety or exclusively DSM - IV depressive symptoms (DSM - IV = Diagnostic and Statistical Manual of mental disorders, 4th edition).

The addition of 12 new studies to this review enabled the conduct of meta - analyses of a range of physical (for example, weight, length, head circumference, mid-thigh or leg circumference, salivary cortisol, sleep duration, mean increase in 24 - hour sleep, crying or fussing time, bilirubin), mental (for example, parental stress, infant attachment, parent - infant interaction etc) and developmental (for example, temperament; physical and mental development) outcomes, of which very few achieved statistical significance, or statistical significance was lost at follow - up or following sensitivity analyses.

My studies show that fewer than half of one per cent of Realtors bother getting accurate statistical information.