Exact(12)
The present study focused on potential errors related to participant selection and participation issues that may affect other cohort studies used in environmental health research.
Due to the complex sampling design, the prevalence estimation was weighted according to the inverse of probability of selection and participation rate in each selected block.
The recommendations cover most methodological issues: study design; definition of population of interest; control of bias, sample selection and participation rate; how to access and engage participants, and methods of enquiry; case definition and diagnosis, and algorithm for making headache diagnoses; use of pilot studies; measurement of headache burden.
Identification of a difficult airway prior to intubation allows for optimal preparation, equipment selection, and participation of experienced personnel.
It indicates that the position of a person in the network (with respect to contacts in the k-core) makes him prominent in his selection and participation during elections.
Selection and participation bias.
Similar(48)
"David's success has had a very positive impact for the local weightlifting federation," says Collins. "Just last month he came home to help out in a youth selection program, and participation doubled with kids trying out for a chance to train at the same institute as David".
With the ice hockey team in mind, there was debate about the trade-off between selection standards and participation after the 1960 Winter Olympics.
In order for community leaders to be seen as authoritative spokespeople in the eyes of the community and the health system, providing a foundation for realizing the health benefits of participation, the method of selection, representation, and participation must be perceived as creating political legitimacy and procedural justice.
The survey covered the whole country, recruiting a large representative sample through careful random selection and minimizing participation bias by achieving a very high participation rate (>99%%).
The results of the election are examined in terms of the success of a candidate (admin selection) and involvement of a candidate (participation in voting).
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