Respondents were selected by the non-probabilistic "quota" method, which consists of questioning a sample of people with the same socio-demographic characteristics as the whole population.
All participants said they were happy for a GP to ask them for a stool sample without questioning why: 'You don't question your doctor.
Unemployment data are collected each trimester through questioning a wide representative sample of the Spanish population about their employment situation during the past weeks.
Soon after the Register poll was published Monday night, showing Senator Hillary Rodham Clinton trailing Mr. Obama, the Clinton campaign sent out a memorandum questioning its methodology and sampling.
However, the symptomatic nature of the participants may be indicative of cartilage lesions that may not be radiographically detectable, as reported by Ding et al. in patients with K-L grade 1, thereby questioning the status of this sample as a "healthy" population [ 36].
No conserved synteny is shared by the copepod samples studied here, questioning their homologous status.
Recently, Hesterberg and colleagues have stressed this important issue, by questioning the relevance of certain samples or exhaust exposures that currently are used in experimental studies, for risk-assessment of particulate matter from new technology diesel exhaust [ 74].
Second, while data of almost 400 children were collected for this study, one should keep in mind that the response rate was less than 45%, thereby questioning the representativeness of the present sample.
The lighthearted, but fastidious judges approached each firm's workspace, sampling the cakes and questioning the groups on the architectural backgrounds of the buildings they chose to represent.
Blood sampling as well as questioning and assessment of physiologic variables were performed by the same investigator.
