The analysis, based on a sample survey of voters last year, is viewed as the best source of government data on turnout by race and ethnicity.
Yes, the listeners to the webcast were certainly not a representative sample (not that any survey nowadays is based on a representative sample) but the honest answers may have given us a good indicator of the state of IT readiness for big data.
This is based on a survey sample of 200 user enterprise IT and business leaders, along with input from about 30 vendors.
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It conducts a ten-minute online survey of a sample of its target audience--7, 500 people were included in a recent query--and divides them into two groups, those who have seen ads and those who've missed them.
RAINN's count of pregnancies is based on Justice's victimization survey from 2004-05, in part because the CDC's survey has a smaller sample size, says Scott Berkowitz, RAINN's president and founder.
They partnered with Modern Survey, which sends out a survey to a random sample of full-time, adult US workers to learn how they feel about their relationship with their managers.
The unemployment rate is derived from a separate survey of households, which has an even smaller sample size and thus a wider confidence range.
The survey is based on a sample size of 257 respondents, 52% of whom see the economy getting stronger or staying the same.
The Adecco survey sample was relatively small, just 522 full-time workers polled in a telephone survey done from November 21-25, but to me, the findings ring true.
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The survey is based on a representative sample of 5, 000 U.S. households and measures consumer sentiment on current economic conditions and the spending outlook for the next six months.
The new analysis, which appears in the June issue of the journal Pediatrics, included a nationally representative sample of 3, 383 adolescents who participated in the National Health and Nutrition Examination Survey, a biannual survey conducted by the CDC.
This online survey is not based on a probability sample and therefore no estimate of theoretical sampling error can be calculated.
First, the change of 3% (from 45% to 48%) is not a very significant change unless the sample size of the survey, which is unclear, was sufficiently large.
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These figures are from the country's Sample Registration System (SRS), a comprehensive monthly survey of 1.5m households on births and deaths.
The annual Girls' Attitudes Survey has canvassed the opinions of a representative sample of girls and young women throughout the UK since 2009.
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The monthly Consumer Confidence Survey, based on a probability-design random sample, is conducted for The Conference Board by Nielsen.
Press Ganey admits that survey sample sizes sometimes are too small and says a minimum of 30 responses for an ER is necessary to draw meaningful conclusions from its data.
Results of the February survey indicate that CMOs who were more optimistic increased from 29 percent of the sample in August 2012 to a whopping 56 percent in the current survey!
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One note of caution in interpreting the survey findings: Deloitte and Forbes Insights polled a relatively small sample, just 356 employees, in the month of March 2011.
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Yet, when we survey participants at IMD, which is probably a much-biased sample because of the corporate seniority of the people involved, the estimates of talent under-utilization are shocking.
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The online survey, by Nationwide Financial, questioned a small, self-selected sample of advisers, so the results may not be representative.
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The survey was done by an outfit called Braun Research that polled a nationally representative sample of 1, 000 working Americans age 18 or older.
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The survey researchers and statisticians associated with the government were committed to obtaining a representative sample of the U.S. population in order to provide a true reflection of the country.
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Admittedly, this survey only covers those couples which hired a professional vendor for their wedding, so the sample is skewed towards the bigger spenders.
But the report authors say the survey sample represents about 2.8% of the farming industry in Wales, a higher ratio than those that may be questioned in a political opinion poll, for example.
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