Sentences with phrase «representative sample»
A "representative sample" means a smaller group of people or things that accurately represents the larger group. It is chosen in a way that each member in the larger group has an equal chance of being included in the sample. Full definition
Results reflect the performance of representative samples of students in each state and nationwide.
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This issue features the first - ever analyses of the views of nationally representative samples of parents that compares perceptions of charter, private and district schools.
These findings highlight the importance of systematic study of diagnostic criteria in representative samples of the general population.
Nevertheless, a larger and more representative sample of males may have produced different results.
It does not contain representative samples for any of the states, not even the largest one.
The average scores and percentages presented are estimates because they are based on representative samples of students rather than on the entire population of students.
In particular, longitudinal studies using representative samples of known juvenile sex offenders are needed.
Despite this reduction, we still have a very representative sample size with over 500 past system picks.
Often we will scrape more than one area to make sure that we get representative samples.
The national reading and mathematics assessments are taken every two years by representative samples of fourth - and eighth - grade students in each state and nationwide.
Accountability could be achieved at the district level by administering traditional standardized tests to a statistically representative sampling of students, rather than to every student every year.
Some breed clubs have DNA collection for dogs at their national specialty shows so they can get a good representative sample for their breed.
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And this means that the firms that do change price are a perfectly representative sample of the rest of the population of firms that can not change price.
A less representative sample makes it much more difficult to draw unbiased conclusions.
I did my own little survey on a smaller, not very representative sample.
The general view is that there are other more important factors that determine the accuracy of telephone polls, such as getting a politically representative sample.
The nationally representative sample discussed here represents a subset of a larger sample used to analyze a broader experiment about how individuals respond to information about school quality.
This is a statistically significant representative sample of the student population.
Quite the contrary, says the study, which looked at a broadly representative sample of more than 1,500 people and their attitudes toward global warming and nuclear power.
An archive containing representative samples of each type, color, texture and pattern of this material is being established for exhibition and study.
Over 6,000 people (from a national and unbiased representative sample) were surveyed and polled.
A brief representative sampling of these products can be found on the previous page.
In sum, the merit of the present study over previous studies is the large representative sample with a wide age distribution.
The suppliers of bond ETFs get around the liquidity problem by using representative sampling, which simply means tracking only a sufficient number of bonds to represent an index.
Fight back by making sure your little ones see a broader and more representative sample of the world.
Study results are based upon 600 web - based surveys among a statistically representative sampling of investment decision - makers within 401 (k) plan sponsors.
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Cook surveyed representative samples of Australians and Americans regarding their political ideologies and the effect of consensus on their acceptance of human - caused global warming.
To do this we need to assess past exposure to Zika by testing blood from representative samples of at - risk populations for the presence of antibodies to the virus.
Over the past ten years, several institutes that study public opinion have regularly asked representative samples of the population of those over eighteen years of age whether they favored or opposed homosexual marriage and adoption of children by same - sex couples.
Based on data from the New York Fed's Consumer Credit Panel, a nationally representative sample drawn from anonymized Equifax credit data, the report provides a quarterly snapshot of household trends in borrowing and indebtedness, including data about mortgages, student loans, credit cards, auto loans and delinquencies.
Other long - term student data sets have major limitations, e.g. SAT and ACT data are not representative samples because students choose to take those tests.
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The NSCH includes information on approximately 50,000 children under age 18, with representative samples for each state.
A spokesperson for the council said, «you don't review every single person, you review the role and you take representative samples to do that.»
In 2005, NAEP tested representative samples of 8th - grade public and private school students in each of the 50 states in math, science, and reading.