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Anchoring and adjustment in software estimation

Jorge Aranda, Steve Easterbrook
2005 Proceedings of the 10th European software engineering conference held jointly with 13th ACM SIGSOFT international symposium on Foundations of software engineering - ESEC/FSE-13  
The results show that anchoring and adjustment does occur in software estimation, and can significantly change the resulting estimates, no matter what estimation technique is used.  ...  The adjustment is frequently insufficient and so the final answer is biased. In this paper, we report a study to investigate the effects of this phenomenon on software estimation processes.  ...  ACKNOWLEDGMENTS We would like to thank the people who volunteered to this study for their invaluable participation; and to Eric Yu, Greg Wilson and Björn Regnell for their insights and comments on this  ... 
doi:10.1145/1081706.1081761 dblp:conf/sigsoft/ArandaE05 fatcat:6lc4taxjjvezbo6gm7xqi3r42u

Anchoring and adjustment in software estimation

Jorge Aranda, Steve Easterbrook
2005 Software engineering notes  
The results show that anchoring and adjustment does occur in software estimation, and can significantly change the resulting estimates, no matter what estimation technique is used.  ...  The adjustment is frequently insufficient and so the final answer is biased. In this paper, we report a study to investigate the effects of this phenomenon on software estimation processes.  ...  ACKNOWLEDGMENTS We would like to thank the people who volunteered to this study for their invaluable participation; and to Eric Yu, Greg Wilson and Björn Regnell for their insights and comments on this  ... 
doi:10.1145/1095430.1081761 fatcat:2mmhagge7zffrd4z474vrqdtni

Reducing the property appraisal bias with decision support systems: An experimental investigation in the South African property market

Kathleen Margaret Evans, University of Cape Town, Carsten Lausberg, Sui Sang How Jesse
2019 Journal of African Real Estate Research  
Various studies have shown that valuers are prone to anchoring to asking price, previous estimates, and other reference points.  ...  Of particular interest for valuation tasks is the susceptibility of decision-makers to the anchoring and adjustment heuristic, a mental shortcut which involves deliberate and conscious adjustment of values  ...  , suggest that people use an anchor-and-adjust strategy to solve estimation problems.  ... 
doi:10.15641/jarer.v4i1.729 fatcat:ir5m7nyoa5ejlbsdssd2uujwfm

The effects of request formats on judgment-based effort estimation

Magne Jørgensen, Torleif Halkjelsvik
2010 Journal of Systems and Software  
Studies 1 and 2 report that software professionals receiving the alternative format provided much lower, and presumably more optimistic, effort estimates of the same software development work than those  ...  Studies 3 and 4 suggest that the effect belongs to the family of anchoring effects.  ...  Anchoring Effects The "anchoring and adjustment" strategy, described in (Kahneman, Slovic et al. 1982) , predicts that an estimator will start with a convenient reference value (the anchor) and then adjust  ... 
doi:10.1016/j.jss.2009.03.076 fatcat:6sqvm3jemnannochmhu3fmyvvu

UT Biomedical Informatics Lab (BMIL) probability wheel

Sheng-Cheng Huang, Sara Lee, Allen Wang, Scott B. Cantor, Clement Sun, Kaili Fan, Gregory P. Reece, Min Soon Kim, Mia K. Markey
2016 SoftwareX  
A probability wheel can improve the adjustment process and attenuate the effect of anchoring bias when it is used to estimate or communicate probabilities of outcomes.  ...  A probability wheel app is intended to facilitate communication between two people, an "investigator" and a "participant", about uncertainties inherent in decision-making.  ...  Acknowledgment This study was supported in part by NIH grant R01 CA143190.  ... 
doi:10.1016/j.softx.2016.10.001 pmid:28105462 pmcid:PMC5241085 fatcat:gfq5hyet3nhzzb5zy5js7fs3ae

Cognitive Biases in Software Engineering: A Systematic Mapping Study [article]

Rahul Mohanani, Iflaah Salman, Burak Turhan, Pilar Rodriguez, Paul Ralph
2018 arXiv   pre-print
Although extensively explored in cognitive psychology, investigations concerning cognitive biases have only recently gained popularity in software engineering (SE) research.  ...  This paper therefore systematically maps, aggregates and synthesizes the literature on cognitive biases in software engineering to generate a comprehensive body of knowledge, understand state of the art  ...  This study was supported in part by the Infotech Oulu Doctoral grant at University of Oulu to Rahul Mohanani and Iflaah Salman.  ... 
arXiv:1707.03869v2 fatcat:fbys6htryvgltbgbso75cwcgcu

Evaluation of Real-Time PCR Amplification Efficiencies to Detect PCR Inhibitors

Elias J. Kontanis, Floyd A. Reed
2006 Journal of Forensic Sciences  
In this study, assays with varying concentrations of tannic acid are used to evaluate and adjust sample-specific amplification efficiency calculation methods in order to optimize their inhibitor detection  ...  Kinetic outlier detection and prediction boundaries are calculated to identify amplification efficiency outliers.  ...  This research was supported in part by grants to EJK by from the Forensic Sciences Foundation and the Cornell University Chapter of Sigma Xi.  ... 
doi:10.1111/j.1556-4029.2006.00182.x pmid:16882221 fatcat:wyl4ivlkqfferixp7hng32jfsq

An experimental evaluation of a de-biasing intervention for professional software developers

Martin Shepperd, Carolyn Mair, Magne Jørgensen
2018 Proceedings of the 33rd Annual ACM Symposium on Applied Computing - SAC '18  
CONTEXT: The role of expert judgement is essential in our quest to improve software project planning and execution.  ...  OBJECTIVE: We aimed to replicate this anchoring bias using professionals and, novel in a software engineering context, explore de-biasing interventions through increasing knowledge and awareness of judgement  ...  Acknowledgements This work was funded by EPSRC Grants EP/I038225/1 and EP/1037881/1. We are also grateful to the participants of the experiments.  ... 
doi:10.1145/3167132.3167293 dblp:conf/sac/ShepperdMJ18 fatcat:t3dwn4bqtne6fmnz7mi54jdcua

DIAPHRAGM WALL SUPPORTED BY GROUND ANCHORS AND INCLINED STRUTS: A CASE STUDY

Adnan Anwar Malik
2019 International Journal of GEOMATE  
Moreover, due to unavailability of foundation details for neighbor building, the ground anchor option was dropped, and inclined steel struts were considered, only in that section.  ...  The subsurface ground consisted of made ground/fill material, Caprock, Simsima Limestone, Midra Shale and Rus formation. Plaxis 2D software was used to analyze the diaphragm wall.  ...  (structural software), to estimate the bending moments and shear forces on the waler beam, and also for the exact estimation of the load on the struts and ground anchors.  ... 
doi:10.21660/2019.57.8170 fatcat:j4noq74gpveitlmjrj4p37kwsy

Software-Effort Estimation: An Exploratory Study of Expert Performance

Steven S. Vicinanza, Tridas Mukhopadhyay, Michael J. Prietula
1991 Information systems research  
they bring to bear in their estimations.  ...  Once this task was completed, the manager was then presented with data from ten actual software projects, one at a time, and asked to estimate the effort (in worker-months) required to complete the projects  ...  Kemerer of MIT's Sloan School of Management for his comments on this paper and permitting us access to the project data used in this study. The comments ofthe anonymous reviewers were also helpful.  ... 
doi:10.1287/isre.2.4.243 fatcat:fx4f3gvw4nfdveozd4pv5awqc4

Biasing Influence of 'Mental Shortcuts' on Diagnostic Decision-Making: Radiologists Can Overlook Breast Cancer in Mammograms When Prior Diagnostic Information Is Available

Fallon Branch, Isabella Santana, Jay Hegdé
2022 Diagnostics  
'anchoring information') and adjusting it until they are satisfied.  ...  Anchoring-and-adjustment (AAA) is a well-known heuristic in which subjects reach a judgment by starting from an initial internal judgment ('anchored position') based on available external information (  ...  Acknowledgments: We thank our colleagues, especially Alan Saul and Eugene Bart and Alicia Stevens, for the helpful discussions and for comments on the manuscript and Jennevieve Sevilla for the excellent  ... 
doi:10.3390/diagnostics12010105 pmid:35054272 pmcid:PMC8774943 fatcat:kpbxxtdskrhgneyyihnf2zy7my

Design and testing of a DSS to help reduce bias in judgemental forecasting [chapter]

Michael Lawrence
1996 Implementing Systems for Supporting Management Decisions  
Yet surveys in the USA, UK and Australia show very low penetration of any direct computer support in the estimation of forecasts.  ...  The tool which is behaviourally rather than mathematically based, is shown to improve estimation accuracy over a purely judgemental alternative and to be significantly better than the naive forecast.  ...  This result can also be viewed as a reversal of the usual anchor and adjustment bias in which subjects anchor on a value already known and arrive at their estimate through making an adjustment (generally  ... 
doi:10.1007/978-0-387-34967-1_17 fatcat:zwowc2t4czhl5hcswkyq67siay

Ideal site for ventricular anchoring of artificial chordae in mitral regurgitation

Alberto Weber, Samuel Hurni, Stijn Vandenberghe, Andreas Wahl, Thierry Aymard, Rolf Vogel, Thierry Carrel
2012 Journal of Thoracic and Cardiovascular Surgery  
Virtual neochordae between the leaflet and the left ventricular apex were first adjusted in systole to achieve leaflet coaptation.  ...  These distances were measured in systole and diastole, and the performance of virtual neochordae was analyzed for the 3 potential anchoring sites.  ...  coaptation, and in diastole, the position of the proximal anchoring point and leaflet was estimated on the basis of this length  ... 
doi:10.1016/j.jtcvs.2011.09.031 pmid:22035963 fatcat:xejh66ueqjffraclpuwzhc346u

Methodological Issues in Examining Measurement Equivalence in Patient Reported Outcomes Measures: Methods Overview to the Two-Part Series, "Measurement Equivalence of the Patient Reported Outcomes Measurement Information System® (PROMIS®) Short Forms"

Jeanne A Teresi, Richard N Jones
2016 Psychological test and assessment modeling  
Several methodological challenges underlying (DIF-free) anchor item selection and model assumption violations are presented as a backdrop for the articles in this two-part series on measurement equivalence  ...  cognition, and social function.  ...  in the preparation of this manuscript.  ... 
pmid:28983448 pmcid:PMC5625814 fatcat:ym6vgl543va4xax7tegfcuq5me

Homozygosity disequilibrium associated with treatment response and its methylation regulation

Hsin-Chou Yang, Chia-Wei Chen
2018 BMC Proceedings  
phenomenon in population genomics and medical genomics.  ...  by using LOHAS (Loss-of-Heterozygosity Analysis Suite) software.  ...  We sincerely thank two anonymous reviewers for their constructive and insightful comments that helped in preparing our manuscript.  ... 
doi:10.1186/s12919-018-0150-9 pmid:30263048 pmcid:PMC6156896 fatcat:ig53xaa64fh2jm2eigedwexmxi
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