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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1965 1
1966 1
1967 2
1970 1
1971 1
1972 1
1974 1
1975 2
1976 3
1977 8
1978 2
1979 4
1980 2
1981 4
1982 2
1983 7
1984 3
1985 4
1986 3
1987 6
1988 14
1989 11
1990 2
1991 8
1992 12
1993 7
1994 10
1995 11
1996 13
1997 20
1998 8
1999 12
2000 7
2001 12
2002 7
2003 12
2004 11
2005 8
2006 14
2007 14
2008 10
2009 8
2010 18
2011 22
2012 24
2013 25
2014 32
2015 15
2016 23
2017 24
2018 29
2019 26
2020 19
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507 results
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Page 1
Catalogue of bias: observer bias.
Mahtani K, Spencer EA, Brassey J, Heneghan C. Mahtani K, et al. BMJ Evid Based Med. 2018 Feb;23(1):23-24. doi: 10.1136/ebmed-2017-110884. BMJ Evid Based Med. 2018. PMID: 29367322
Observer bias is systematic discrepancy from the truth during the process of observing and recording information for a study. Many healthcare observations are at risk of this bias. Evidence shows that treatment effect estimates can be exaggerated by a third t …
Observer bias is systematic discrepancy from the truth during the process of observing and recording information for a study. …
Pain assessment in elderly adults with dementia.
Hadjistavropoulos T, Herr K, Prkachin KM, Craig KD, Gibson SJ, Lukas A, Smith JH. Hadjistavropoulos T, et al. Lancet Neurol. 2014 Dec;13(12):1216-27. doi: 10.1016/S1474-4422(14)70103-6. Epub 2014 Nov 10. Lancet Neurol. 2014. PMID: 25453461 Review.
These techniques need to be interpreted in the context of observer bias, contextual variables, and the overall state of the individual's health and wellbeing....
These techniques need to be interpreted in the context of observer bias, contextual variables, and the overall state of the in …
Distinct effects of contour smoothness and observer bias on visual persistence.
Zhou Z, Strother L. Zhou Z, et al. J Vis. 2017 Feb 1;17(2):8. doi: 10.1167/17.2.8. J Vis. 2017. PMID: 28245488 Free PMC article.
We distinguish the effect of contour smoothness on contour persistence from observer bias, which also contributes to the surprisingly long duration of contour persistence. ...
We distinguish the effect of contour smoothness on contour persistence from observer bias, which also contributes to the surpr …
The Mystery of the Z-Score.
Curtis AE, Smith TA, Ziganshin BA, Elefteriades JA. Curtis AE, et al. Aorta (Stamford). 2016 Aug 1;4(4):124-130. doi: 10.12945/j.aorta.2016.16.014. eCollection 2016 Aug. Aorta (Stamford). 2016. PMID: 28097194 Free PMC article. Review.
These include intra- and inter-observer bias, measurement error, and variations between alternative Z-score nomograms and BSA equations. ...Guidelines for measuring aortic parameters have been developed by the American Society of Echocardiography Pediatric and Conge …
These include intra- and inter-observer bias, measurement error, and variations between alternative Z-score nomograms and BSA …
The plantar reflex: A study of observer agreement, sensitivity, and observer bias.
Araújo R, Firmino-Machado J, Correia P, Leitão-Marques M, Carvalho J, Silva M, Nogueira A, Nunes C. Araújo R, et al. Neurol Clin Pract. 2015 Aug;5(4):309-316. doi: 10.1212/CPJ.0000000000000155. Neurol Clin Pract. 2015. PMID: 29443235 Free PMC article.
We studied the Babinski, Chaddock, and Oppenheim reflexes in terms of intraobserver, interobserver, and intertest agreement; sensitivity; positive predictive value (PPV); and observer bias. ...There was no evidence of observer bias. Sensitivity was 59. …
We studied the Babinski, Chaddock, and Oppenheim reflexes in terms of intraobserver, interobserver, and intertest agreement; sensitivity; po …
Observer bias in randomized clinical trials with time-to-event outcomes: systematic review of trials with both blinded and non-blinded outcome assessors.
Hróbjartsson A, Thomsen AS, Emanuelsson F, Tendal B, Rasmussen JV, Hilden J, Boutron I, Ravaud P, Brorson S. Hróbjartsson A, et al. Int J Epidemiol. 2014 Jun;43(3):937-48. doi: 10.1093/ije/dyt270. Epub 2014 Jan 21. Int J Epidemiol. 2014. PMID: 24448109 Review.
CONCLUSIONS: Lack of blinded outcome assessors in randomized trials with subjective time-to-event outcomes causes high risk of observer bias. Nonblinded outcome assessors typically favour the experimental intervention, exaggerating the hazard ratio by an average of …
CONCLUSIONS: Lack of blinded outcome assessors in randomized trials with subjective time-to-event outcomes causes high risk of observer …
Model-based control of observer bias for the analysis of presence-only data in ecology.
Warton DI, Renner IW, Ramp D. Warton DI, et al. PLoS One. 2013 Nov 18;8(11):e79168. doi: 10.1371/journal.pone.0079168. eCollection 2013. PLoS One. 2013. PMID: 24260167 Free PMC article.
In this paper, we describe and evaluate a model-based approach to accounting for observer bias directly--by modelling presence locations as a function of known observer bias variables (such as accessibility variables) in addition to environmental varia …
In this paper, we describe and evaluate a model-based approach to accounting for observer bias directly--by modelling presence …
Flow cytometric assay for direct quantification of neutrophil extracellular traps in blood samples.
Gavillet M, Martinod K, Renella R, Harris C, Shapiro NI, Wagner DD, Williams DA. Gavillet M, et al. Am J Hematol. 2015 Dec;90(12):1155-8. doi: 10.1002/ajh.24185. Epub 2015 Oct 6. Am J Hematol. 2015. PMID: 26347989 Free PMC article.
This new methodology allows rapid and robust assessment of several thousand cells per sample and is independent of potential observer-bias, the two main limitations of the microscopic quantification. ...
This new methodology allows rapid and robust assessment of several thousand cells per sample and is independent of potential observer …
Observer bias in randomized clinical trials with measurement scale outcomes: a systematic review of trials with both blinded and nonblinded assessors.
Hróbjartsson A, Thomsen AS, Emanuelsson F, Tendal B, Hilden J, Boutron I, Ravaud P, Brorson S. Hróbjartsson A, et al. CMAJ. 2013 Mar 5;185(4):E201-11. doi: 10.1503/cmaj.120744. Epub 2013 Jan 28. CMAJ. 2013. PMID: 23359047 Free PMC article. Review.
INTERPRETATION: We provide empirical evidence for observer bias in randomized clinical trials with subjective measurement scale outcomes. A failure to blind assessors of outcomes in such trials results in a high risk of substantial bias....
INTERPRETATION: We provide empirical evidence for observer bias in randomized clinical trials with subjective measurement scal …
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