Sentences with phrase «statistical significance of»

The statistical significance of the path coefficients and indirect effects were determined with bootstrapped standard errors.

Given that the subgroups of men and women differed substantially in size (i.e., 263 men vs. 847 women), and given poor robustness of t - tests with very different group sizes, we tested the statistical significance of gender differences using t ′, which assumes lack of homogeneity of variance.

A 95 % confidence level was used to interpret the statistical significance of probability tests, corresponding to a P value of <.05.

After establishing the different groups by cluster analysis, analyses of variance (ANOVAs) were carried out in order to analyze the statistical significance of between - group differences in parenting practices.

Confounding and Statistical Significance of Indirect Effects: Childhood Adversity, Education, Smoking, and Anxious and Depressive Symptomatology.

The superscripts in the third column denote the statistical significance of differences between married and widowed persons.

The superscripts in the sixth and ninth columns denote the statistical significance of differences by the spousal age gap within each marital status.

We do not summarize these findings because — in addition to being shorter term — the statistical significance of the effects was sometimes not reported, and most of these outcomes were measured with indices that do not allow one to readily interpret the size of the effects.

Limitations include small sample size, small number of data points, and that data on the statistical significance of the results was not presented.

Limitations include the small sample size and that data on the statistical significance of the results was not presented.

Statistical significance of outcome analyses varied by treatment sample and assessment instrument considered, but results clearly converged.

The statistical significance of between - group differences was established using χ2 tests with P = 0.05 (two - sided).

Notwithstanding the clinical and statistical significance of the observed results, a confirmatory trial with a larger sample size is needed.

This will involve careful examination and consideration of the magnitude, direction and statistical significance of the responsiveness estimated for each outcome.

Analyzed the sensitivity of a proposed price increase across ~ 400 stores, using Microsoft Excel to calculate elasticity of demand and find optimal price, and Minitab to verify statistical significance of results

When determining the statistical significance of a trend line, for example, realizations with both signs are used to determine the p - value.

Wonderful, R2 soars to 0.32, and with the coefficient at MINUS 6.96 and t = MINUS 4.76 and p = 2.23E - 05 we have superb statistical significance of the result that Net Forcing has a powerful effect on temperature change, it's just too bad that it is actually NEGATIVE.

There's not even enough data to calculate the statistical significance of the relationship between the two tiny datasets, much less determine its meaning.

So, what time averaging period is sufficient to erase the statistical significance of the pause?

The statistical significance of neither changes by using Byrd as a single station.

What Jones actually said is that, while the globe has nominally warmed since 1995, it is difficult to establish the statistical significance of that warming given the short nature of the time interval (1995 - present) involved.

... Now where is the statistical significance of the volume and / or mass of those «gas bubbles» being found?

On qualitative level it's pretty convincing but there are a couple of points that make it difficult to tell the statistical significance of the results.

Phil Jones did not say that there «had been no significant warming» he was misquoted from a discussion of the statistical significance of the trend.

Debate over whether the warming has really «paused» and the statistical significance of a trend over a short interval are basically debating points.

This result is important because the statistical significance of this multidecadal oscillation in the long records has not been established previously either in Greenland ice core data (17) or in a previous analysis of CET (18).

The comment to the IPCC FAR concerns a fundamental question, that of how to determine the statistical significance of trends in datasets containing long term persistence, such as climate datasets.

Some measure of the statistical significance of climate change has been present in every climate assessment report from the U.N. Intergovernmental Panel on Climate Change dating back to 1990.

Brandon, You are so right, it is absolutely ridiculous for me to say that the statistical significance of a trend does not depend on the number of years.

The effect is of a magnitude that remains close to the limit of detectability, or many measurements are necessary because of the very low statistical significance of the results.

We quantify the statistical significance of differences in the populations of different time periods using the block bootstrap resampling approach of ref.

More seriously, a casual inspection of both graphs (normalized and non-normalized damage over time) presented by Pielke leads me to question the statistical significance of either.

But nothing of this has really any direct connection to what I said about the lack of statistical significance of the alleged «pause» in my reply to the comment by angech.

Consequently, the statistical significance of the observed cloud deviations following FD events reported in SES12 is highly overestimated.

Lack of statistical significance of the temperature trend is not sufficient as confirmation of the «pause», based on statistical reasoning.

In summary, your argument pointing to the lacking statistical significance of the temperature trend estimate for a time period is not sufficient empirical / statistical evidence or scientific justification for the claim that there was a «pause» of global surface / troposphere warming.

The link you provided is a rebuttal of that argument, i.e., the Bartlett formula for effective degrees of freedom fails in that case, and the statistical significance of their result is much higher than that formula would imply.

Monte Carlo experiments employing FARIMA models indicate that trend tests which fail to consider LTP greatly overstate the statistical significance of observed trends when LTP is present.

Our calculations of the statistical significance of least - squares linear trends in timeseries are based on the two - sided t - test methodology and adjustment for autocorrelation reviewed and outlined by Santer et al. (2000).

«The statistical significance of these results is far too strong to be merely dismissed, and should wipe out much of the uncertainty about the reality of global warming,» said lead author Tim Barnett of the Scripps Institution of Oceanography.

I questioned another co-author about why they choose to use a 90 % confidence threshold for evaluating the statistical significance of surface temperature trends, instead of the standard for significance of 95 % — he also expressed reluctance and did not defend the decision.

There is a huge tendency to try to determine the statistical significance of the smallest possible sample and when it doesn't pass the statistical test to argue that we can't say whether or not there is a trend, or whether or not there is an AGW contribution.

But there is some disagreement between studies on the of statistical significance of these trends.

Given the more than 3 million volcanoes worldwide indicated by the work of Hillier & Watts (2007), one might be prone to wonder about the statistical significance of Gerlach's seven subaerial volcanoes and three hydrothermal vent sites.

There was also a finding of misconduct in 2010 in which the respondent admitted that he had «increased statistical significance of the calculated means and standards of deviation [sic] of the... data presented by discarding certain experimental data and thus presented data that was falsified.

A decrease in statistical significance of a trend from one period to the next period doesn't by itself even allow the conclusion that the trend slope decreased, since the statistical significance depends both on the trend slope and on the properties of the fluctuations overlaying the trend within the time period, the amplitude and how the fluctuations are distributed over the time interval.

The very high statistical significance of (i) the phase agreement between Solar north - ward excursions and the diversity minima and (ii) the correlation of the magnitude of diversity drops with CR amplitudes through all cycles provide solid support for our model.

The claims for statistical significance of the slope from 1975 to 1997 are bunkum.

We can continue this conversation after you show the statistical significance of your 4 year trend since you attribute to me making some sort of false argument.

Statistical significance of recent trend: If I control for ENSO using the simple tercile technique illustrated in my figure, the residual global temperature anomalies for the period 1997 - 2011 have a trend of 0.012 C / yr, and that trend has a one - sided p - value of 0.0016.