Sentences with phrase «measurement error in»

This approach allows for the most likely class membership to be obtained from the posterior probabilities along with classification uncertainty; the most likely class membership variables can then be analyzed to include covariates while accounting for the measurement error in classification [45].

Parts of the data may have some elements of the errors that are Gaussian — the example of measurement error in terms of scale may be Gaussian — after get through the problems of variances in the thermometers themselves, which is also a well - known problem for mercury thermometers vis a vis their manufacturing — but their measured variance from the true temperature is not demonstrably Gaussian, and gets worse the further back you go.

The rms average measurement error in McCrae's method, of (+ / --RRB- 1.8 C, emerged under ideal laboratory conditions, where the water temperature was independently determined and the marine O18 fraction was directly measured.

The estimated prevalence of undernourishment (or % people at risk from hunger) is statistically non significant at values below 5 % — due to variation in inter-personal dietary - energy needs and measurement error in food availability and distribution.

It's interesting to notice the same denier crowd «accidentally» neglects to mention the up to ~ 7 % measurement error in ice extent values at certain times of the year when trumpeting «record ice extent in Antarctica».

Correcting for Test Score Measurement Error in ANCOVA Models for Estimating Treatment Effects

The state might follow the recommendations of analysts and use tests from multiple subjects and control for measurement error in their value - added calculations.

He and others note that there is a certain amount of measurement error in every test.

They should control for multiple previous test scores and account for measurement error in those tests.

We propose a general method of moments technique to identify measurement error in self - reported and transcript - reported schooling using differences in wages, test scores, and other covariates to

While numerous papers have highlighted this imprecision, most studies of instability have not systematically considered the role of measurement error in estimates aside from the type that is caused by sampling error.

We also use information on the school's performance composite two years before the year to correct for measurement error in the school's previous - year performance.

Measurement error in the assessment of dietary variables is likely to be nondifferential as the dietary factors were collected long before death events occurred.

This is important because you might have to redefine a similarity between data points or you might have to correct for a slight measurement error in your data.

«There is measurement error in any score,» says Edward Polloway of Lynchburg College in Virginia, co-chair of a task force on the death penalty for the American Association on Intellectual and Developmental Disabilities (AAIDD).

Self - reported weight and height contribute to measurement error in the calculation of prepregnancy BMI and misclassification into BMI categories, which affect estimates of GWG and PPWR (65).

Attention to test scores in the value - added estimation raises issues of the narrowness of the tests, of the limited numbers of teachers in tested subjects and grades, of the accuracy of linking teachers and students, and of the measurement errors in the achievement tests.

It is designed to estimate the reliability of a final result, given the impact of calculational and / or measurement errors in the calculational terms.

By the way, neither do the systematic measurement errors in the surface air temperature record.

This is a straightforward consequence of the variability in the parameter estimation (not to mention measurement errors in the various observations).

Not exact matches

Provincial instructors focused on two main areas: document use, aimed at helping workers better understand specialized blueprints, and numeracy, aimed at reducing the measurement errors caused by metric - trained employees working in an imperial - measurement environment.

We should not overreact to a single month's report, since the job numbers are based on a survey and are prone to the measurement errors inherent in any survey.

In Facebook's case, the issue is complicated by the fact that the social network has repeatedly had to admit errors in its audience - measurement analytics, including over-estimating video views for more than two yearIn Facebook's case, the issue is complicated by the fact that the social network has repeatedly had to admit errors in its audience - measurement analytics, including over-estimating video views for more than two yearin its audience - measurement analytics, including over-estimating video views for more than two years.

Further, there's a good chance the hot hand is more substantial than we estimate due to another subtle statistical issue called «measurement error,» which we discuss in the appendix of our paper.

The Cambridge Analytica blunder aside, Facebook has grappled with a slew of other missteps in recent months, including Russian actors using the platform to influence the 2016 US Presidential Election and a string of measurement errors.

Statistics Canada, which compiles such numbers, however, seems uninterested in investigating the hypothesis of a measurement error.

One diplomat said the IAEA allows for a margin of error of 1 percentage point in such measurements, which means that Iran wasn't technically over the limit.

Even those with the best of intentions have been caught fudging measurements, or making small errors in rounding or in statistical analysis that happen to give a more favorable result.

And in the numerous cases in which exact measurements are not possible one must at least measure the degree of probable error, something that determinists tend to forget.

According to him, the error lies in assuming that one is dealing with the same set of possible spin - measurement results for the particles coming out one side of the apparatus described no matter what orientation one considers for the spin - measuring device (s) on the other side of the apparatus.

I wanted to let you know there were a couple of errors in the measurements for the Kale and Quinoa Salad because mom wrote the recipe from memory...

The point of using weight measurements instead of volume measurements is due to the lack of standardization in volume containers, and the inevitable human error that leads to discrepancies in volume measurements.

So it took me a bit of trial and error to get the exact measurements, but in the end my pie tastes pretty darn close to grandmas.

Joachim Fischer of the German National Metrology Institute in Berlin, who heads the CIPM task group on redefining the kelvin, says the margin of error in the measurement, a record - breaking 0.71 parts per million, is potentially low enough to officially redefine the kelvin.

* Erratum (1/28/10): This sentence was edited after publication to correct a measurement conversion error in the number of hectares stated.

Gaia will also help pinpoint the orbit of Pluto, eventually bringing down errors in its measurement from 2000 kilometres to around 50 kilometres.

This new method shows that it is not a factor of measurement error and that the Earth has in fact warmed, said Compo.

This measurement error may have biased the coefficients in the model.

«Long propagation delays, Doppler effects due to vehicle and water movement, and the highly dynamic multipath nature of the undersea environment result in significant errors and outliers in received data measurements.

However, because each of these measurements must be calibrated to account for natural variation in the environment over time, individual dates have large amounts of error and uncertainty, making them difficult to aggregate or interpret in groups.

This approach will make it possible to reduce errors in exposure measurement, and to identify the potential periods of greatest influence of phenols on the growth of children during childhood.

In addition, they estimate the impact of other sources of error on the mRNA and protein abundance measurements using direct experimental data, and they find that, when error is explicitly measured and modeled, an even greater correlation between mRNA and protein is expected.

Errors in the muon - based measurements of the proton radius are unlikely to be to blame, Arrington says, and yet it seems equally unlikely that all the other measurements are wrong, too.

The researchers say that, because of the measurement's margin of error, the finding translates to essentially no methane in the...

We can confirm this by doing statistics for a lot of measurements and calculate the statistical standard error of the mean, which in our case is 850 zeptoseconds.»

New measurement points to possible error in ESA survey that could also affect the agency's new Gaia mission

However, these mapping techniques result in wider error bars than those of «legacy» point measurement techniques — an issue McNesby and his colleagues hope to improve on.

By aiming at the atoms from opposite directions simultaneously, the laser arrangement cancels a major source of measurement error — the Doppler shift, or the change in the atoms» apparent resonant frequency as they interact and move with the laser light.

There are several reasons for the variation, including whether courts take into account the measurement error inherent in IQ scores — the fact that an individual, tested repeatedly, would not achieve the same score every time, but rather a distribution of scores clustered around their «true» IQ.

Measurements on some 50 grains of zircon from the gneiss rocks found in Canada showed them to be 3.962 billion years old, with a margin of error of only three million years.