:Please, please, please, stop what you're currently doing and read selection bias, sampling bias, participation bias, convenience sample and accidental sampling-as well as any decent reference on how to conduct a valid statistical sample.
12.
Because of the inevitable use of convenience samples, sample sizes are usually very small and the majority of the research participants end up looking quite homogeneous e . g . white, middle-class, urban, and well-educated.
13.
They also find that " a very large number of academic in fact have quite positive, if nuanced, perceptions of Wikipedia s value . " They also observe that the most commonly studied group has been that of students, who offer a convenience sample.
14.
Brown's thesis that working-class girls are better equipped to avoid the epidemics of American adolescence is provocative, but her study is conducted on what social scientists call a " convenience sample, " one that came easily to hand rather than one selected to be representative.
15.
:ah, found it : as of last january . 68 % 10.6, 21 % 10.5, 8 % 10.4, and the remainder of the X systems accounting for roughly 2 % . 21, 000 votes, though, so it's a decent sample even for a convenience sample.
16.
Clinical trials also typically use convenience samples, however the aim is often to make inferences about the efficacy of treatments in other patients, and given the inclusion and exclusion criteria for some clinical trials, the sample may not be representative of the majority of patients with the condition or disease.
17.
:: Australian Cattle Dogs and Maltese were over-represented in the sample, but it stands to reason that in a convenience sample of the dogs treated at a single vet hospital the most popular dog breeds would be over-represented . ( See also " Congenital portosystemic shunts in Maltese and Australian Cattle Dogs"
18.
Psychology professors Stanton L . Jones and Mark A . Yarhouse observed that " Homosexualities " is one of the most influential studies ever conducted on homosexuality, but that like several other iconic studies, including those by Hooker, Kinsey, J . Michael Bailey, and Richard Pillard, its authors'conclusions were based on convenience samples, which have no known representativeness.
