Sentences with phrase «measurement is in error»

That folks we can not accomplish at all and people who claim it can be done based upon isotopic measurements are in error.

Not exact matches

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.

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.

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.

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

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.

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.

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.»

«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).

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.

Estimating the errors inherent in the kind of measurements used by Maciejewski and his co-authors is a tough thing to do, Bean says; if the actual errors in the data were larger than the researchers had accounted for, the variations in the observed transit times could vanish.

The data is only 33 years in length, but based on that data, there is no first order correlation between temperature and CO2 during its 33 year period and this suggests that then signal to CO2 (ie., Climate Sensitivity) is so low that it can not be measured within the sensitivity, resolution and errors of our best current temperature measurements.

Because the signals arriving at a receiver from all satellites are measured at the same time, the distance measurements are all falsified by the same receiver clock error, which must be calculated in order to determine an accurate position.

Naturally this article fails to mention that since the hydrosphere is 271 times as massive as the atmosphere, if oceans are absorbing the heat they are likely to moderate AGW into a nonproblem, as the average ocean temperature has only changed by.1 degrees in 50 years, an amount that is probably smaller than measurement error.

While there remain disparities among different tropospheric temperature trends estimated from satellite Microwave Sounding Unit (MSU and advanced MSU) measurements since 1979, and all likely still contain residual errors, estimates have been substantially improved (and data set differences reduced) through adjustments for issues of changing satellites, orbit decay and drift in local crossing time (i.e., diurnal cycle effects).

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.

Either way, errors in measurement probably aren't to blame.

There is still some discrepancy remaining, which could be due to errors in the satellite measurements, the ocean heat content measurements, or both.

And by increasing the dynamic stiffness we can nearly eliminate the effect of electrostatic forces between the sample and cantilever body, which are major sources of error in today's PFM measurements, as mentioned.»

The previously obtained flux ratio of 0.44, which was based on measurements in the optical and at 70mu, is consistent with the present ALMA results, albeit with a large error bar.

When Bailin deduced the angular momentum of the warped portion of the Milky Way's disk and compared that measure with SagDEG's angular momentum, he found that, within the margins of measurement error, the two angular momenta are very similar in strength and direction.

We don't know for sure if any change in resting metabolism is because of extra muscle, or whether it's due to measurement error.

It's more likely that the changes were due to differences in [protein intake](https://evidencemag.com/dieting-protein-needs) and measurement error, rather than some «special» repartitioning effect.

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

While an element of the unexplained variability will likely have arisen though measurement error, it is more likely that the variation occurred primarily through variation between performances within individuals, as snatch, clean and jerk, and total 1RM varies by around 2.3 — 2.7 % in elite Olympic weightlifters (McGuigan & Kane, 2004), although test - re-test reliability of the 1RM power clean is nearly perfect in adolescent male athletes, with ICC = 0.98, a standard error of measurement (SEM) of 2.9 kg and a smallest worthwhile change (SWC) of 8.0 kg (Faigenbaum et al. 2012).

Despite the measurement of key confounders in our analyses, the potential for residual confounding can not be ruled out, and although our food frequency questionnaire specified portion size, the assessment of diet using any method will have measurement error.

They noted that differences recorded in joint angles were generally between 2 — 3 degrees, which may have been measurement error.

There are a number of potential sources of error in measurements of teacher effectiveness based on student achievement data.

However, the fact that we find very «precise zeros» — that is, we don't find statistically significant relationships even though we have the statistical power in our data to detect even very modest relationships — implies that neither measurement error nor a lack of sufficient variation are what's driving our inability to detect a relationship between teaching and research quality.

Nevada has imposed steep penalties on Harcourt Educational Measurement for errors in administering statewide exams, and Georgia is poised to do the same, following scoring glitches typical of the kind that have plagued state - sponsored testing programs in recent years.

This is why, in our modeling efforts, we do massive multivariate, longitudinal analyses in order to exploit the covariance structure of student data over grades and subjects to dampen the errors of measurement in individual student test scores.

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.

Accordingly, and also per the research, this is not getting much better in that, as per the authors of this article as well as many other scholars, (1) «the variance in value - added scores that can be attributed to teacher performance rarely exceeds 10 percent; (2) in many ways «gross» measurement errors that in many ways come, first, from the tests being used to calculate value - added; (3) the restricted ranges in teacher effectiveness scores also given these test scores and their limited stretch, and depth, and instructional insensitivity — this was also at the heart of a recent post whereas in what demonstrated that «the entire range from the 15th percentile of effectiveness to the 85th percentile of [teacher] effectiveness [using the EVAAS] cover [ed] approximately 3.5 raw score points [given the tests used to measure value - added];» (4) context or student, family, school, and community background effects that simply can not be controlled for, or factored out; (5) especially at the classroom / teacher level when students are not randomly assigned to classrooms (and teachers assigned to teach those classrooms)... although this will likely never happen for the sake of improving the sophistication and rigor of the value - added model over students» «best interests.»

An important concept in assessment is the standard error of measurement (SEM).

In 2000, a scoring error by NCS - Pearson (now Pearson Educational Measurement) led to 8,000 Minnesota students being told they failed a state math test when they did not, in fact, fail it (some of those students weren't able to graduate from high school on timeIn 2000, a scoring error by NCS - Pearson (now Pearson Educational Measurement) led to 8,000 Minnesota students being told they failed a state math test when they did not, in fact, fail it (some of those students weren't able to graduate from high school on timein fact, fail it (some of those students weren't able to graduate from high school on time).

Observers committed to reducing error should consider multiple measurements for teacher evaluation.Yes, Evaluations Can Be Fair and Accurate In this month's ASCD, Robert Marzano discusses ways to minimize error and maximize accuracy and fairness when principals, coaches, or other administrators are conducting classroom observations.

The debate over the new systems has often centered on the frequent errors in what's known as value - added measurement, which can lead to effective teachers being misidentified as ineffective, and whether the potential problems for teachers outweigh the potential benefits for students.

Because some amount of error is expected with any measurement, statisticians developed the term Standard Error of Measurement (SEM) to account for small amounts of error in every reerror is expected with any measurement, statisticians developed the term Standard Error of Measurement (SEM) to account for small amounts of error in evmeasurement, statisticians developed the term Standard Error of Measurement (SEM) to account for small amounts of error in every reError of Measurement (SEM) to account for small amounts of error in evMeasurement (SEM) to account for small amounts of error in every reerror in every result.

Perhaps a more reasonable explanation, though, is that there is some bias in the tests upon which the TVAAS scores are measured (as likely related to some likely issues with the vertical scaling of Tennessee's tests, not to mention other measurement errors).

In 2014, the American Statistical Association issued a statement warning that value - added - measurement VAM) is fraught with error, inaccurate, and unstable.