We limited data to first-time respondents, to avoid the error of non-independent repeated measures within individuals.
These decisions will be reconsidered when repeating the analysis of the psychometric properties of the S-HSOPSC on a dataset of second-time respondents which is now accumulating.
And the 2000 census for the first time allowed respondents to choose more than one race in identifying themselves, so that the number of Americans who declared themselves black "in combination with one or more other races" is now 37.7 million -- slightly higher than the overall figure for Latinos.
To determine the prevalence of concurrent headache and sleep problems (HSP) and, for the first time, characterize respondents with HSP in terms of demographic, socioeconomic and lifestyle factors, psychological symptoms, and quality of life.
For the first time in six years, respondents to NPD surveys say they weigh a little less this year than the previous year.
In one case, self-funders were to be able to attend local authority day centres for the first time, although the respondent noted: "Not sure how this will work in practice, or if they will want to use this service!" Two-thirds of survey respondents indicated that charges had been introduced or increased for those using the service.
A subset of EMIC interview respondents with a history of pandemic influenza, with a history of H1N1 vaccination and those who did not take the H1N1 vaccine will be interviewed a second time as respondents for these community case studies.
In a survey it began conducting last month, Pew for the first time asked gun-owning respondents "whether they enjoy having guns, whether they feel uncomfortable about them, and whether they feel safer for having them," Mr. Dimock said.
Of interest in the context of introducing a CPC framework for the first time, the majority of respondents (70%, 551) would not consider registering at a lower level rather than having to complete CPC.
But the most recent Fox News survey found that — for the first time since before 9/11 — more respondents were unwilling (45 percent) than willing (43 percent) to sacrifice personal freedoms to reduce the threat of terrorism.
