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Research Bias
n/a
8
Health Care
Undergraduate 2
10/13/2012

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Cards

Term
Random Bias
Definition
those due to sampling variability or measurement precision, occur in essentially all quantitative studies and can be minimized but not avoided\
Term
Systematic Bias
Definition
(or errors)are reproducible inaccuracies that produce a consistently false pattern of differences between observed and true values
Term
Major Bias Categories
Definition
Selection Bias
Measurement Bias
Intervention Bias
Term
Selection Bias
Definition
may result in the subjects in the sample being unrepresentative of the population of interest
Term
Measurement biases
Definition
include issues related to how the outcome of interest was measured
Term
Intervention (exposure) biases
Definition
differences in how the treatment or intervention was carried out, or how subjects were exposed to the factor of interest
Term
Volunteer or referral bias
(Selection bias)
Definition
occurs because people who volunteer to participate in a study (or who are referred to it) are often different than non-volunteers/non-referrals
Term
Non respondent bias
Definition
occurs when those who do not respond to a survey differ in important ways from those who respond or participate
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