Sentences with phrase «significant in a larger sample»

Not exact matches

In full disclosure, there are still nine days worth of MLB games to be played this April that will directly influence results and, even after April is completed, analyzing fewer than two month's worth of results is hardly a sample size large enough to draw statistically significant conclusions.

Also, it is difficult to show statistical significant differences in mortality even with very different numbers because the mortality rates are so low, you need very large sample sizes that aren't often found.

Thus, our results showing no differences in D2 / D3 receptor availability (except for a trend in ventral striatum), using a larger sample (24 marijuana abusers) than that used for studies that identified reductions in striatal D2 / D3 receptors in alcoholics and cocaine abusers, indicate that marijuana abusers, different from other drug abusers, do not show significant striatal D2 / D3 receptor reductions.

The researchers claim that the discovery — which is the largest sample discovered at a single African site, and one of the largest anywhere in the world — is significant enough to change our understanding of human evolution.

In the current study using 3D MRI data in a larger sample (N = 5,388), multiple SNPs showed significant association with multiple facial phenotypes, even after an over-conservative Bonferroni correctioIn the current study using 3D MRI data in a larger sample (N = 5,388), multiple SNPs showed significant association with multiple facial phenotypes, even after an over-conservative Bonferroni correctioin a larger sample (N = 5,388), multiple SNPs showed significant association with multiple facial phenotypes, even after an over-conservative Bonferroni correction.

Supporting this logic, the largest human study to date found no significant long - term hormonal changes in chronic marijuana users, and suggested that earlier studies involved insufficient sample sizes.

And in fact, research suggests that there are no significant personality differences between online and offline daters.5 There is some evidence that online daters are more sensitive to interpersonal rejection, but even these findings have been mixed.6, 7 As far as the demographic characteristics of online daters, a large survey using a nationally representative sample of recently married adults found that compared to those who met their spouses offline, those who met online were more likely to be working, Hispanic, or of a higher socioeconomic status — not exactly a demographic portrait of desperate losers.8

The aggregate rates for the sample rider and policy from three large carriers showed a significant difference in rates between places in New Hampshire.

For topsoils (the top 10 cm of the uppermost mineral horizon), the sample size of the nationwide dataset is sufficiently large to detect a 5 % difference in median C stocks between cultivated and reforesting topsoils as statistically significant (20 vs. 21 Mg of C / ha, respectively).

There is a significant amount of aerosol formation taking place with no ionization («background levels»), and when the sample air in the experiment was replaced, this caused a large jump (seen as a shift along the vertical axis) in the formation rate (the different colours in the figure above).

An parcel means that the medium is small enough to be isothermal and in local thermodynamic equilibrium (which then ensures that the population of thermodynamic molecular energy levels will be set by molecular collisions at the local atmospheric temperature), but the parcel is also large enough to contain a large enough sample of molecules to represent a statistically significant mass of air for thermodynamics to apply.

Although the tendency to isolate large, significant results in abstracts has been noted elsewhere (Fanelli 2012), here we provide the first empirical evidence of such a trend across a large sample of literature.

However, our meta - analysis did find multiple lines of evidence of biases within our sample of articles, which were perpetuated in journals of all impact factors and related largely to how science is communicated: The large, statistically significant effects were typically showcased in abstracts and summary paragraphs, whereas the lesser effects, especially those that were not statistically significant, were often buried in the main body of reports.

The aggregate rates for the sample rider and policy from three large carriers showed a significant difference in rates between places in New Hampshire.

Nevertheless, the MECSH trial showed some significant results and some trends that require replication in larger samples of mothers drawn from a similarly widely defined at - risk group, including older, multiparous mothers, and mothers with higher levels of education than have been reported in other trials.1 14 Mothers of infants and toddlers in the intervention group provided a home environment that was statistically significantly more supportive of their child's development through more verbal and emotional responsivity; however, the effect size was small.

Nevertheless, given the large number of coefficients examined, the significant association of SAD with reduced odds of a suicide attempt among planners should be considered no more than provisional until replicated in independent samples.

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.

The quasi-experimental design reduces spillover effects but does not eliminate the possibility of selection bias.41, 42 The use of prospectively identified control subjects was intended to minimize discrepancies in outcomes between the 2 designs.43 For some outcomes, as noted previously, the magnitude and direction of outcomes for intervention and control families at randomization and quasi-experimental sites were comparable, although they were statistically significant only at quasi-experimental sites and in the larger pooled sample.

The quasi-experimental design reduces spillover effects and makes it easier to implement the program, but does not eliminate the possibility of selection bias.35, 36 The use of prospectively defined controls at quasi-experimental sites likely contributed to minimized discrepancies in outcomes between randomization and quasi-experimental groups.37 For several parenting outcomes, such as discipline practices, findings were of similar magnitude and direction at randomization and quasi-experimental sites, but statistically significant at only quasi-experimental sites, where the sample size was larger; they were significant in the pooled sample, as well.

Validation for preschool MDD (based on meeting all DSM - IV symptom criteria) has been supported by the finding of a specific symptom constellation that was distinct from other psychiatric disorders and stable during a 6 - month period.22 Additionally, alterations in the hypothalamic - pituitary - adrenal axis reactivity similar to those known in adults with depression, greater family history of mood disorders, as well as observational evidence of depressive affects and behaviors were detected in preschoolers with depression, providing further validation.22,25,27 - 30 More recent findings from a larger independent sample (N = 306) ascertained from community sites (and serving as the population for this investigation) have replicated the findings described above and have also demonstrated that preschoolers with depression display significant functional impairment evident in multiple contexts rated by both parents and teachers.24

First, associations between depression and cortisol in pregnancy were not found in one large population based cohort study20 and may only be significant in the presence of antidepressant medication21 or co-morbid anxiety.22 Second, studies that tested either direct associations between antenatal maternal cortisol levels on infant or child outcomes or the mediational role of antenatal cortisol in associations between antenatal depression and outcomes yield mixed findings and typically have relied on small samples.23 Postpartum depression has been associated with a range of problems in infants» and young children's development.

We can not rule out that additional significant associations of shared selves with collaboration frequency or marital quality would be obtained in a larger sample.

In fact, it is possible that child emotional or behavioral problems lead to paternal and / or maternal mental health problems, although the literature on maternal depression and other aspects of maternal mental health clearly indicate that in most such cases it is maternal mental health that influences child mental health.1, — , 12 Large sample sizes such as the 1 in this study sometimes result in statistically significant findings that may not be clinically significant, although this does not seem to be the case in this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problemIn fact, it is possible that child emotional or behavioral problems lead to paternal and / or maternal mental health problems, although the literature on maternal depression and other aspects of maternal mental health clearly indicate that in most such cases it is maternal mental health that influences child mental health.1, — , 12 Large sample sizes such as the 1 in this study sometimes result in statistically significant findings that may not be clinically significant, although this does not seem to be the case in this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problemin most such cases it is maternal mental health that influences child mental health.1, — , 12 Large sample sizes such as the 1 in this study sometimes result in statistically significant findings that may not be clinically significant, although this does not seem to be the case in this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problemin this study sometimes result in statistically significant findings that may not be clinically significant, although this does not seem to be the case in this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problemin statistically significant findings that may not be clinically significant, although this does not seem to be the case in this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problemin this study, as paternal mental health problems or depressive symptoms were associated with considerably increased risks of child emotional or behavioral problems.

However, these preliminary findings need to be confirmed in future studies with larger samples, which have sufficient variability in the data to establish significant effects.

The significant results found in the Pereira et al. (2012) study may in part be due to the large sample size (N = 291) which may have been sufficient to detect subtle associations between CSA and parenting stress in the community sample and protect against type II errors.

However, statistically significant findings in large samples does not necessarily yield clinical significance.