<p>Biases in observational studies and their potential effect when using self-report data from self-selected individuals <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.1001328#pmed.1001328-DelgadoRodrguez1" target="_blank">[12]</a>.</p
Observer bias and other “experimenter effects” occur when researchers’ expectations influence study ...
Cohort studies allow an exploration of patient change over time. They can provide information on the...
Study characteristics, findings reported and the risk of bias assessments for studies that report on...
<p>Using imperfect tests may lead to biased estimates of disease frequency and measures of associati...
The quality of a clinical study depends on internal and external factors. Studies have internal vali...
The study analyzes the extent to which student self-reported data are biased and what variables can ...
This Viewpoint discusses the limitations that observational studies have in drawing causal inference...
The internal validity of an epidemiological study can be affected by random error and systematic err...
This article is part of a series featured from the Catalogue of Bias introduced in this volume of BM...
Using imperfect tests may lead to biased estimates of disease frequency and measures of association....
PurposeSelection bias is a form of systematic error that can be severe in compromised study designs ...
Bias is inherent in epidemiology, and researchers go to great lengths to avoid introducing bias into...
BackgroundSystematic reviews, which assess the risk of bias in included studies, are increasingly us...
The assumption of strongly ignorable treatment assignment is required for eliminating selection bias...
Background: Increasingly, risk of bias tools are used to evaluate epidemiologic studies as part of e...
Observer bias and other “experimenter effects” occur when researchers’ expectations influence study ...
Cohort studies allow an exploration of patient change over time. They can provide information on the...
Study characteristics, findings reported and the risk of bias assessments for studies that report on...
<p>Using imperfect tests may lead to biased estimates of disease frequency and measures of associati...
The quality of a clinical study depends on internal and external factors. Studies have internal vali...
The study analyzes the extent to which student self-reported data are biased and what variables can ...
This Viewpoint discusses the limitations that observational studies have in drawing causal inference...
The internal validity of an epidemiological study can be affected by random error and systematic err...
This article is part of a series featured from the Catalogue of Bias introduced in this volume of BM...
Using imperfect tests may lead to biased estimates of disease frequency and measures of association....
PurposeSelection bias is a form of systematic error that can be severe in compromised study designs ...
Bias is inherent in epidemiology, and researchers go to great lengths to avoid introducing bias into...
BackgroundSystematic reviews, which assess the risk of bias in included studies, are increasingly us...
The assumption of strongly ignorable treatment assignment is required for eliminating selection bias...
Background: Increasingly, risk of bias tools are used to evaluate epidemiologic studies as part of e...
Observer bias and other “experimenter effects” occur when researchers’ expectations influence study ...
Cohort studies allow an exploration of patient change over time. They can provide information on the...
Study characteristics, findings reported and the risk of bias assessments for studies that report on...
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