selection bias

listen to the pronunciation of selection bias
Englisch - Türkisch
(Pisikoloji, Ruhbilim) seçim yanlılığı
Englisch - Englisch
a bias in assignment or a confounding variable that arises from study design rather than by chance These can occur when the study and control groups are chosen so that they differ from each other by one or more factors that may affect the outcome of the study
In assessments of the validity of studies of healthcare interventions, selection bias refers to systematic differences between comparison groups in prognosis or responsiveness to treatment Random allocation with adequate concealment of allocation protects against selection bias Other means of selecting who received the intervention of interest, particularly leaving it up to the providers and recipients of care, are more prone to bias because decisions about care can be related to prognosis and responsiveness to treatment Selection bias is sometimes used to describe a systematic error in reviews due to how studies are selected for inclusion Publication bias is an example of this type of selection bias Selection bias, confusingly, is also sometimes used to describe a systematic difference in characteristics between those who are selected for study and those who are not This affects the generalisability (external validity) of a study but not its (internal) validity
Threat to the representativeness of a sample that occurs when the procedures used to select a sample result in the over- or under-representation of a significant segment of the population
Error due to systematic differences in characteristics between those who are selected for study and those who are not
The error that occurs when a sample systematically includes or excludes people with certain attitudes
Use of data that are not typical, but are selected in a way that biases results (p 27)
The introduction of error due to systematic differences in the characteristics of those selected to participate in a study, or receive an intervention Two types of selection bias can be distinguished In sampling bias, error results from failure to ensure that all members of the reference population have a known chance of being selected for inclusion in the sample In allocation bias, error results from systematic differences in the characteristics of those assigned to treatment versus control groups in a controlled study Allowing potential participants to self-select for participation or for intervention introduces selection bias {3} Use your browser's "BACK" button to return to the page you were viewing previously
Errors in the selection and placement of subjects into groups that results in differences between groups which could effect the results of an experiment
selection bias

    Silbentrennung

    se·lec·tion bi·as

    Türkische aussprache

    sılekşın bayıs

    Aussprache

    /səˈleksʜən ˈbīəs/ /səˈlɛkʃən ˈbaɪəs/
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