Sentences with phrase «of measurement error»

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

That at least will remove much of the measurement error.

Some educators will be improperly punished for eliciting what appear to be low gains because of measurement error.

take a horizontal ruler on fig1 and put it half a standard deviation of the measurement error (50y) higher up than the C14 age mean (the maximum of the red curve).

Second, the data on which the calculations are based — the areas of the world's biomes — are crude, lacking estimates of measurement error.

This new study suggests that the major reason why protein and mRNA abundance measurements are poorly correlated is because of various types of measurement error in the protein and mRNA abundance, rather than transcription having minimal impact on protein expression levels.

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.

Since all the months show multi-decadal variability within + or — 0.5 degree C, well within margin of the measurements error for the SST, I could only conclude that the N. Atlantic Ocean's SST has been remarkably steady.

Also, he has investigated the use of generalizability theory — a psychometric theory of measurement error — in the testing of English language learners and indigenous populations.

Structural equation modeling (SEM) allows for the simultaneous examination of the relationships between latent constructs defined by multiple measures as well as directly observed variables (e.g., gender, HbA1C) while reducing the effect of measurement error on results.

That means that the uncertainty of the measurement error for the radiosondes and the satellites is negligible.

If misalignment is noticed, it is not to be the fault of either measure (e.g., in terms of measurement error), it is to be the fault of the principal who is critiqued for inaccuracy, and therefore (inversely) incentivized to skew their observational data (the only data over which the supervisor has control) to artificially match VAM - based output.

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.

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

When the discrepancy arose a few years ago, scientists suspected it would fade away, a symptom of measurement errors.

The problem of measurement error is quite real.

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.

If end of year summative assessment s are seen as data for longitudinal analysis of year over year general progress of districts and schools, rather than absolute determinants of individual achievement, then the concept of some measurement error, which of course always exists, doesn't have quite the cache.

We have some evidence that teacher effectiveness differs according to the two math areas of problem - solving and procedures, but we need to further understand the contributions of measurement error to those findings and to extend them to other subjects and skills.

Our method generalizes the test - retest framework by allowing for i) growth or decay in knowledge and skills between tests, ii) tests being neither parallel nor vertically scaled, and iii) the degree of measurement error varying across tests.

In this paper, we demonstrate a credible, low - cost approach for estimating the overall extent of measurement error that can be applied when students take three or more tests in the subject of interest (e.g., state assessments in consecutive grades).

With student - level data, the extent and pattern of measurement error heteroskedasticity also can be estimated.

There is a lot of measurement error and there is some «human system bias» dependent on eyesight, tiredness, etcetera, but «subjectivity» is the wrong word.

Generally, the remaining uncorrected effect from urban heat islands is now believed to be less than 0.1 C, and in some parts of the world it may be more than fully compensated for by other changes in measurement methods.4 Nevertheless, this remains an important source of uncertainty.The warming trend observed over the past century is too large to be easily dismissed as a consequence of measurement errors.

Despite the variability, the long - term increase in ocean heat content is real and can not be dismissed as an artifact of measurement error, said climate scientist Michael Mann of Penn State.

They found a trend of measurement errors from the Bacharach Hi - Flow Sampler (BHFS), an equipment extensively utilized in natural gas facilities.

The final error estimate for the climate - change — driven GMSL acceleration is the RSS of the measurement errors (0.011 mm / y2), the error in the Pinatubo correction (0.01 mm / y2), the error in the ENSO correction (0.01 mm / y2), and the errors due to decadal variability (0.017 mm / y2).

To that end, in February, Facebook agreed to have its ad measurements audited by the Media Rating Council, following a series of measurement errors disclosed since September 2016.

~ Ordering custom minimizes the chance of measurement error when you have a workroom through an interior designer.

P (Obs calendar - age = y) does not change much when y changes by a small amount, small enough that the carbon - 14 age changes by much less than the standard deviation of the measurement error.

Answers and Questions After a quarter - century, the Oh My God Particle still defies explanation, and some researchers now suspect it might have been the result of a measurement error.

This type of measurement error is unlikely to bias our estimates because there is no reason to believe it is related to whether a student won the school - choice lottery.

«No previous RNA sequence amplification is required, which reduces evident sources of measurement errors.»

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.

Also, he has investigated the use of generalizability theory — a psychometric theory of measurement error — in the testing of English language learners.

Overview of Measuring Effect Sizes: The Effect of Measurement Error.»

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.

If one assumes that true teacher performance is stable, then changes in teachers» measured performance are the result of measurement error.

Because of measurement error, two people with very different scores on one exam administration might get similar scores on a retest, or vice versa.