Sentences with phrase «than the random sample»

It makes sense that this study does not have much validity if the only women who participated in the study were those who agreed to document their experiences based out of their own interest (self - selection bias) rather than a random sample that covered a diverse range of experiences.

The researchers sampled all identifiable pneumatic controller devices at each well site, a more comprehensive approach than the random sampling previously conducted.

However, these children made greater progress than the random sample on two of three measures and the effect sizes were reduced, suggesting a trend towards closing the gap.

Empirical results show that our approach achieves smaller tracking error and better index tracking effect than the random sampling.

Not exact matches

When staffers for New York City Comptroller Scott Stringer surveyed a random sampling of 50 businesses in the wider area surrounding Trump Tower in mid-November, they discovered more than two - thirds of them claimed they were losing revenue.More than a third called the impact «severe.»

In a random sampling of public opinion taken by the Forum Poll among 1,385 Canadians 18 years of age and older, the majority (51 %) do not agree Canadian employers should be able to hire temporary foreign workers (a federal program which has just been curtailed), while fewer than this agree (45 %).

Not long ago, BLI administered a financial - literacy test to a random sample of more than 300 U.S. managers, from top executives to supervisors.

The random - sample survey of more than 2,000 Americans asked «Do you believe homosexual behavior is a sin?»

The scientists studied the medical records for a random sample of more than 500 families, comparing those who got nurse visits to those who didn't.

The strongest research methods for psychological studies are: qualitative findings versus quantitative; experimental rather than descriptive or correlational; controlled - experiment, meta - analysis, and observation designs over archival, case study, computational modeling, content analysis, field experiment, interview, neuroimaging, quasi experiment, self - report inventory, random sample survey, or twin study; and prospective (where subjects are recruited prior to the proposed independent effects being administered) and longitudinal (where subjects are studied at multiple time points) rather than retrospective or cross-section study.

Moreover, relying on random sampling of Big Data Internet is extremely complex, more so than working with traditional surveys.

An optimal size for a country as large as the United States would be approximately 700 delegates, and I would choose them by a more - or-less random lottery, counting on the laws of statistics to generate what would in fact be a more «representative sample» of the public than any election would produce.

«We do a random sample of more than 800 registered voters and our sample looks like the New York electorate both in terms of geography, bipartisan break up, gender, age, income etc. so we do it very carefully to ensure we get a representative sample,» said Greenberg.

A 2001 survey of a random sample of more than 1000 U.S. workers aged 18 or older published in the Gallup Management Journal (GMJ) supports the idea that friendships and work are synergistic.

The research team mailed a survey to a random sample of more than 1,000 obstetricians and family physicians in Oregon.

Nosek has been at the forefront of efforts to clean up his field — he and more than 175 collaborators are repeating a random sample of the hundreds of studies published in 2008 in three major psychology journals — and he and Ratliff are both part of Project Implicit, a long - running collaboration that also provides free software for running behavioral experiments with standardized methods.

Employee - level data was collected through a questionnaire distributed to all employees in workplaces with fewer than 25 employees, and to a random sample of 25 employees in larger workplaces with more than 25 employees.

When the geometry of such a system is specified, the simulator allows the user to vary primary and secondary scattering foil material and thickness and to see results in approximately 100 milliseconds, about 10 million times faster than Monte Carlo simulations, which are simulations and computational algorithms that rely on random sampling to obtain results for extremely complex problems that have only numerical solutions.

«We based our analysis on a random sample of more than 200 males from metropolitan Hanover,» says Thomas Rothammel of the Institute.

They analyzed a random group of 200 posts, pulled from a sample of more than 2,000, with roughly equal representation from pseudonymous posts and throwaway posts, to ascertain what survivors of sexual abuse are disclosing on Reddit, how they seek support, and how these disclosures vary depending on whether or not they're coming from a throwaway account.

«The ability to collect data online after national events is far more efficient and useful than the prior way of collecting post-disaster data from representative samples, which required collecting data by telephone using «random digit dialing,»» Silver says.

Generally, localization has practically no effect when random features of a sample are much smaller than the wavelength.

In a random sample of more than 1,350 people, Felder found that 75 percent had at least one family member who gets on their nerves.

Dr. Woolhandler and her colleagues surveyed a random sample of 2,314 people who filed for bankruptcy in early 2007, looked at their court records, and then interviewed more than 1,000 of them.

They studied a random sample of 70,000 users and found that women who initiated contact first were 2.5 times more likely to receive a response than men.

To determine whether the average National Board teacher is better than the average unsuccessful candidate, we need to draw random samples of both groups.

The resources available for this study ($ 500,000, or roughly $ 8,000 per teacher) would certainly have been more than enough to perform a rigorous analysis of the performance of National Board teachers vis - à - vis unsuccessful candidates, using a random sample of the two groups and adjusting for students» socioeconomic status and previous achievement levels.

This is best achieved through random assignment to treatment conditions, which assures (within the margin of error associated with the sample size) that differences between groups of subjects other than their experience of treatment are evened out by the laws of chance.

As for joy of learning, there is a mountain of evidence that American kids enjoy learning math more than Japanese kids, evidence collected from large, random samples of students of different ages and grades.

The tests are administered to a random sample of students in participating states, rather than to all students.

She said that the research team mailed surveys to a large random sample of more than 4,000 women, ages 18 to 45, living in low - income towns and suburbs in Victoria.

Given that this study identified a random sample of districts across the United States as participants, and that we have data only for districts that chose to become involved, actual differences between elementary and secondary schools nationwide may be even wider than those we have discovered.

When a dedicated book report service provides you with an original sample, it is much more useful than when you take a random report from some online repository and try to learn anything from it.

According to this survey, self published women authors earn more than men (random and interesting — I'd like to know the gender breakdown of the overall sample).

In a random sample of six books we noticed that only once did Inkling provide a cheaper alternative than Amazon Kindle's offerings.

This would make representatives less partisan than is common today, because they would have to be elected by groups closer to a random sample of the people in a given area.

The goal of the current study was to address some of the weaknesses of previous studies, which suffered from small sample sizes, lack of long term follow up, lack of random assignment to groups, and reliance on owner recall rather than frequent surveys of current kitten behavior.

Or might the problem be worse than 1 degree off on such a random sample of sites?

Interestingly, in this case there can be distinct advantage to sampling at times which are * not * evenly spaced — a random time sampling may be best of all, because then you are not limited by a «Nyquist frequency,» you can in fact explore the behavior at frequencies far higher than the sampling rate.

Now, as you say, there are all sorts of problems with the historical records of sea level but — just as with temperatures — it is likely that measurements from the satellites will be more accurate and less prone to random variation and sampling error than measurements from ground based sensors.

However, it is that the few millilitres of gas in ice cores is NOT a sample whose «behavior» can be correlated to a population, these «samples» are STATISTICALLY insignificant as a «population sample», it is NOT enough to simply say it is a «random sample», perhaps these STATISTICAL processes and «Experimental Design» analysis concepts should be what you need to read urther, rather than «climate opinion» (said without trying to appear over critical).

On the other hand, if the calendar date prior is uniform, that just implies that a random sample of plant material or herbivore tissues is more likely to have a C14 date near 2450BP or 2200 BP than other adjacent periods.

If the error for different models is random with zero mean, then sampling theory shows that this model average will yield a better estimate of the signal than any single model realisation.

The inference that the failure of a random sample of 928 papers to find a skeptical paper indicates that the proportion of skeptical papers must be «significantly less than.1 %» is unjustified.

Total sampling errors in poorly sampled areas may be higher than random ones by 60 %.

The thing is, if you asked a random sampling of lawyers if they thought that was true, more than a few would assert that no, law is about forms and documents and black - letter law.

Among a random sample of approximately 2,000 middle - schoolers, youth who experienced traditional bullying or cyberbullying, as either an offender or a victim, had more suicidal thoughts and were more likely to attempt suicide than those who had not experienced such forms of peer aggression.

All children scoring higher than a predetermined cut point (the top 25 % of the total scores), plus a 1 - in - 10 random sample of the rest (ie, the remaining 75 % of the total scores), were recruited for detailed interviews.

We chose to retain the whole sample for the analyses and deal with the missing values for the sexual peer norm variables of the participants who did not complete the online questionnaire, because it has been shown that this yields more accurate results than listwise deletion, even when data are not missing completely at random (Schafer & Graham, 2002).