 Observer Variation
"Observer Variation" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
| Descriptor ID |
D015588
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| MeSH Number(s) |
E01.354.753 N02.421.450.600 N05.715.350.150.675 N06.850.490.500.250
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| Concept/Terms |
Observer Variation- Observer Variation
- Observer Variations
- Variation, Observer
- Variations, Observer
- Bias, Observer
- Observer Bias
Interobserver Variation- Interobserver Variation
- Interobserver Variations
- Variation, Interobserver
- Variations, Interobserver
- Inter-Observer Variation
- Inter Observer Variation
- Inter-Observer Variations
- Variation, Inter-Observer
- Variations, Inter-Observer
- Interobserver Variability
- Interobserver Variabilities
- Variabilities, Interobserver
- Variability, Interobserver
- Inter-Observer Variability
- Inter Observer Variability
- Inter-Observer Variabilities
- Variabilities, Inter-Observer
- Variability, Inter-Observer
Intraobserver Variation- Intraobserver Variation
- Intraobserver Variations
- Variation, Intraobserver
- Variations, Intraobserver
- Intra-Observer Variation
- Intra Observer Variation
- Intra-Observer Variations
- Variation, Intra-Observer
- Variations, Intra-Observer
- Intraobserver Variability
- Intraobserver Variabilities
- Variabilities, Intraobserver
- Variability, Intraobserver
- Intra-Observer Variability
- Intra Observer Variability
- Intra-Observer Variabilities
- Variabilities, Intra-Observer
- Variability, Intra-Observer
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Below are MeSH descriptors whose meaning is more general than "Observer Variation".
Below are MeSH descriptors whose meaning is more specific than "Observer Variation".
This graph shows the total number of publications written about "Observer Variation" by people in this website by year, and whether "Observer Variation" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.
| Year | Major Topic | Minor Topic | Total |
|---|
| 1996 | 0 | 2 | 2 | | 1997 | 0 | 3 | 3 | | 1998 | 0 | 3 | 3 | | 1999 | 0 | 3 | 3 | | 2000 | 0 | 9 | 9 | | 2001 | 0 | 4 | 4 | | 2002 | 0 | 8 | 8 | | 2003 | 0 | 8 | 8 | | 2004 | 0 | 6 | 6 | | 2005 | 0 | 2 | 2 | | 2006 | 0 | 9 | 9 | | 2007 | 0 | 11 | 11 | | 2008 | 2 | 7 | 9 | | 2009 | 0 | 8 | 8 | | 2010 | 1 | 13 | 14 | | 2011 | 0 | 18 | 18 | | 2012 | 0 | 14 | 14 | | 2013 | 1 | 12 | 13 | | 2014 | 1 | 20 | 21 | | 2015 | 0 | 19 | 19 | | 2016 | 0 | 12 | 12 | | 2017 | 1 | 21 | 22 | | 2018 | 0 | 18 | 18 | | 2019 | 1 | 12 | 13 | | 2020 | 1 | 11 | 12 | | 2021 | 0 | 5 | 5 | | 2022 | 0 | 4 | 4 | | 2023 | 0 | 4 | 4 | | 2024 | 1 | 6 | 7 | | 2025 | 0 | 8 | 8 |
To return to the timeline, click here.
Below are the most recent publications written about "Observer Variation" by people in Profiles.
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Lucia MS, Callis S, Tangen C, Almutairi F, Chatzitolios A, Kravtsov O, Lenon S, Manuchua V, Simko JP, Szecsei CM, Yeh YA, Zhang L, Iczkowski KA. Whole-Slide Telepathology Grading of Prostate Cancer in Biopsies Using International Society of Urological Pathology Criteria: Interobserver and Intraobserver Concordance and Implications for Active Surveillance. J Urol. 2026 05; 215(5):544-552.
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Chee K, Mirsky DM, Neuberger I, Dastagirzada Y, Cooper E, Hankinson TC. Accuracy of Tumor Surveillance of Pediatric Adamantinomatous Craniopharyngioma Using Noncontrast Brain MRI. AJNR Am J Neuroradiol. 2025 Oct 01; 46(10):2125-2130.
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Chhabra A, He A, Chalian M, Pandey T, Alaia E, Wong PK, Lee KS, Colucci PG, Subhawong T, Vossen JA, Samet J, Chen E, Dayan E, Chang YC, Driessen R, Rich N, Cummings R, Radder N, Zemianschi R, Mohanan S, Zech J, Sanders AE, Qiao Y, Brisk B, Kim J, Igbinoba Z, Tan N, Venugopal N, Laucis N, Eacobacci K, Shaqdan A, Napolitano A, Davis-Hayes C, Taneja AK, Iancau A, Zhu A, Xi Y, Silva FD. Musculoskeletal infection reporting and data system (MSKI-RADS): multi-institutional wider generalizability study. Eur Radiol. 2026 Mar; 36(3):2091-2101.
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Fuchita M, Pattee J, Le D, To T, Mucharraz C, Knippa S, Keyworth A, Blaine C, Lindroth H. Inter-rater Agreement of Richmond Agitation Sedation Scale Assessments in Adult Patients Receiving Mechanical Ventilation in the ICU: A Cross-Sectional Study. Crit Care Explor. 2025 Sep 01; 7(9):e1302.
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Ward BA, Ringelberg KJ, Onodera KM, Stacey SC, Parry JA. Occult intertrochanteric extension of greater trochanter fractures on magnetic resonance imaging has weak interrater reliability. Eur J Orthop Surg Traumatol. 2025 Jun 24; 35(1):274.
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Miller JH, Lefkowitz D, Maulsby G, Mechtler L, Pinter N, Snyder T, Hayes L, Carpenter J, Koral K, Cornejo P, Levendovszky SR, Warntjes JBM, Johansson P, Lange E. Neuroimaging Reader Study on Clinical Sensitivity and Specificity Using Synthetic MRI Based on MR Quantification. AJNR Am J Neuroradiol. 2025 Jun 03; 46(6):1196-1202.
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Codipilly DC, Faghani S, Vogelsang D, Moassefi M, Garg N, Hagen C, Lewis J, Leggett CL, Patil P, Konda V, Al Diffalha S, Peter S, Brinkerhoff B, Wong M, Otaki F, Katzka DA, Wani S, Shaheen N, Erickson BJ, Iyer PG. Deep Learning Model for Histologic Diagnosis of Dysplastic Barrett's Esophagus: Multisite Cohort External Validation. Am J Gastroenterol. 2026 Apr 01; 121(4):863-870.
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Doll JA, Hebbe AL, Simons CE, Stein EJ, Eisenbarth S, Waldo SW, Rao SV, Au DH. Evaluation of Peer Review of Percutaneous Coronary Intervention Operator Performance. Circ Cardiovasc Qual Outcomes. 2025 Jan; 18(1):e011159.
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Siu JM, Amin S, Propst EJ, Wolter NE, Prager J, Wyatt M, Lawlor C, Sidell D, Mehta D, Padia R, Smith N, Hartnick C, Hart CK, Wang X, Johnson K. Multi-institutional Validation of the Interarytenoid Assessment Protocol for Pediatric Laryngeal Cleft. Laryngoscope. 2025 Apr; 135(4):1499-1505.
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Twilt JJ, Saha A, Bosma JS, van Ginneken B, Bjartell A, Padhani AR, Bonekamp D, Villeirs G, Salomon G, Giannarini G, Kalpathy-Cramer J, Barentsz J, Maier-Hein KH, Rusu M, Rouvière O, van den Bergh R, Panebianco V, Kasivisvanathan V, Obuchowski NA, Yakar D, Elschot M, Veltman J, Fütterer JJ, Huisman H, de Rooij M. Evaluating Biparametric Versus Multiparametric Magnetic Resonance Imaging for Diagnosing Clinically Significant Prostate Cancer: An International, Paired, Noninferiority, Confirmatory Observer Study. Eur Urol. 2025 Feb; 87(2):240-250.
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