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Meanings of ascertainment bias in English

Portuguese
amostra inclinada
Spanish
sesgo muestral
Catalan
mostra esbiaixada

Bias in which a sample is collected in such a way that some members of the intended population are less likely to be included than others.

        Related terms
        amostra inclinada
        Synonyms
        Examples for "biased sample"
        Examples for "biased sample"
        1
        The suggestion - predictably from a thoroughly biased sample - was Dublin.
        The Irish Times
        2
        It's only fair to say that the 195 people who answered the questionnaire are a biased sample.
        Drawing Down the Moon
        3
        Obviously working in the media is a biased sample, journalists are encouraged to tweet, post or forward funny and unusual material.
        The Guardian
        4
        Oh, people can always reel off lists of famous homosexual geniuses, but that's a biased sample; of course we've only heard of the successes.
        Axiomatic
        5
        Previous studies of the prevalence of sleep problems in adults with intellectual disabilities (ID) are affected by small, potentially biased samples and other limitations.
        Pubmed
        1
        The combined approach results in more robust reconstructions and can protect against sampling bias.
        Pubmed
        2
        Sensitivity analyses showed that the conclusions are robust to sampling bias and other issues.
        Pubmed
        3
        The obvious source of sampling bias there is that people desperately want to get tested.
        The Guardian
        4
        Unilateral loading activities such as tennis or squash provide a direct comparison of skeletal response without sampling bias or genetic confounding.
        Pubmed
        5
        They corrected for sampling bias by only considering four formations in the northwestern interior that each included more than 100 specimens.
        Wired
        Usage of ascertainment bias in English
        1
        Failure to assess for ascertainment bias increases the risk of false genetic associations.
        Pubmed
        2
        Background: The effect of mutations on phenotype is often overestimated because of ascertainment bias.
        Pubmed
        3
        Case ascertainment bias from targeted PHPT screening in patients being evaluated for osteoporosis is the most likely explanation.
        Pubmed
        4
        The pedigrees were influenced by incomplete ascertainment bias, which was reduced by omitting the affected probands from the analysis.
        Pubmed
        5
        High-throughput shotgun sequence data make it possible in principle to accurately estimate population genetic parameters without confounding by SNP ascertainment bias.
        Pubmed
        6
        However, PPI networks are affected by ascertainment bias, in which more studied proteins tend to have more connections, degrading the results quality.
        Pubmed
        7
        The mean minor allele frequency (MAF) did not vary between Asian and European sheep reflecting the absence of ascertainment bias.
        Pubmed
        8
        It remains uncertain whether all information can be extracted by weakly parametric methods and whether correction for ascertainment bias demands a strongly parametric model.
        Pubmed
        9
        The likelihood for each pedigree was conditioned on the proband and first-degree relatives affected with CRC to reduce ascertainment bias and overestimation of penetrance.
        Pubmed
        10
        Conclusions: In US hospitals between 2001 and 2010, CAS was associated with worse in-hospital outcomes, partly attributable to selection and ascertainment bias.
        Pubmed
        Translations for ascertainment bias