Browse the glossary:
Top Ten terms
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cut-off value
(cut-off point, cut point, threshold)
— 10112 views
“For diagnostic or screening tests, the value used to divide continuous results into categories; typically positive and negative” … (read more)
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performance bias
— 9059 views
“Bias resulting from differences in the care provided to the participants in a study, other than the treatments being compared.” … (read more)
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index test
— 8104 views
“A diagnostic test that is being evaluated against a reference standard test in a study of test accuracy” … (read more)
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length-time bias
(length bias)
— 7044 views
“In screening, an apparent increase in survival due to detecting disease earlier than it would otherwise have been detected” … (read more)
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systematic review
— 6054 views
“A summary of studies addressing a clear question, using systematic and explicit methods to identify, select, and critically appraise relevant studies, and to collect and analyse data from them” … (read more)
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effect estimate
(effect size, estimate of effect, point estimate)
— 5660 views
“A statistical measure indicating the most likely size of a treatment effect” … (read more)
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allocation bias
(assignment bias, selection bias)
— 5063 views
“Bias resulting from the way participants in a study have been allocated to treatment comparison groups.” … (read more)
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randomized study
(randomized control trial, RCT, randomized trial, randomized controlled trial (should not be used))
— 4952 views
“A category of studies comparing two or more treatments in which random allocation is used to assign participants to treatment comparison groups” … (read more)
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non-randomized study
(non-experimental study, observational study,)
— 4946 views
“A category of studies that does not use random allocation to assign participants to treatment comparison groups” … (read more)
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study participants
(subjects*, participants)
— 4885 views
“The people included in a study” … (read more)