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M. Jørgensen, T. Halkjelsvik and K. Liestøl

When should we (not) use the mean magnitude of relative error (MMRE) as an error measure in software development effort estimation?

Information and Software Technology 143 (2022).
Journal Article
2022
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T. Halkjelsvik and M. Jørgensen

When 2 + 2 should be 5: The summation fallacy in time prediction

Journal of Behavioral Decision Making (2022).
Journal Article
2022
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M. Jørgensen, M. Welde and T. Halkjelsvik

Evaluation of Probabilistic Project Cost Estimates

IEEE Transactions on Engineering Management (2021): 1-16.
Journal Article
2021
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M. Jørgensen and T. Halkjelsvik

Sequence effects in the estimation of software development effort

Journal of Systems and Software 159, no. January 2020 (2020): 110448.
Journal Article
2020
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2022

Journal articles

T. Halkjelsvik and M. Jørgensen

When 2 + 2 should be 5: The summation fallacy in time prediction

Journal of Behavioral Decision Making (2022).
Status: Accepted
M. Jørgensen, T. Halkjelsvik and K. Liestøl

When should we (not) use the mean magnitude of relative error (MMRE) as an error measure in software development effort estimation?

Information and Software Technology 143 (2022).
Status: Accepted
2021

Journal articles

M. Jørgensen, M. Welde and T. Halkjelsvik

Evaluation of Probabilistic Project Cost Estimates

IEEE Transactions on Engineering Management (2021): 1-16.
Status: Published
2020

Journal articles

M. Jørgensen and T. Halkjelsvik

Sequence effects in the estimation of software development effort

Journal of Systems and Software 159, no. January 2020 (2020): 110448.
Status: Published
2019

Technical reports

M. Welde, M. Jørgensen, P. F. Larssen and T. Halkjelsvik

Estimering av kostnader i store statlige prosjekter: Hvor gode er estimatene og usikkerhetsanalysene i KS2-rapportene?

In Concept-rapport nr. 59. Trondheim: Ex ante akademisk forlag, 2019.
Status: Published
2018

Books

T. Halkjelsvik and M. Jørgensen

Time predictions: Understanding and avoiding unrealism in project planning and everyday life

In Simula SpringerBriefs on Computing. Switzerland: Springer, 2018.
Status: Published
2014

Posters

E. Løhre and T. Halkjelsvik

Time Perception Can Influence Performance Time Predictions

Long Beach, CA: Society for Judgment and Decision Making, 2014.
Status: Published
2012

Journal articles

T. Halkjelsvik and M. Jørgensen

From Origami to Software Development: a Review of Studies on Judgment-Based Predictions of Performance Time

Psychological Bulletin 138 (2012): 238-271.
Status: Published
M. Jørgensen, T. Halkjelsvik and B. Kitchenham

How Does Project Size Affect Cost Estimation Error? Statistical Artifacts and Methodological Challenges

International Journal of Project Management 30 (2012): 751-862.
Status: Published
2011

Journal articles

T. Halkjelsvik, M. Jørgensen and K. Teigen

To Read Two Pages, I Need 5 Minutes, But Give Me 5 Minutes and I Will Read Four: How to Change Productivity Estimates by Inverting the Question

Applied Cognitive Psychology 25 (2011): 314-323.
Status: Published