Increasing validity through replication : an illustrative TDD case
|Author:||Santos, Adrian1; Vegas, Sira2; Uyaguari, Fernando3;|
1M3S-ITEE, University of Oulu, Oulu, Finland
2Escuela Técnica Superior de Ingenieros Informáticos, Universidad Politécnica de Madrid, Madrid, Spain
3ETAPA, Cuenca, Ecuador
4Department of Computer Science, Monash University, Melbourne, Australia
|Online Access:||PDF Full Text (PDF, 0.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020091569499
|Publish Date:|| 2020-09-15
Software engineering (SE) experiments suffer from threats to validity that may impact their results. Replication allows researchers building on top of previous experiments’ weaknesses and increasing the reliability of the findings. Illustrating the benefits of replication to increase the reliability of the findings and uncover moderator variables. We replicate an experiment on test-driven development (TDD) and address some of its threats to validity and those of a previous replication. We compare the replications’ results and hypothesize on plausible moderators impacting results. Differences across TDD replications’ results might be due to the operationalization of the response variables, the allocation of subjects to treatments, the allowance to work outside the laboratory, the provision of stubs, or the task. Replications allow examining the robustness of the findings, hypothesizing on plausible moderators influencing results, and strengthening the evidence obtained.
Software quality journal
|Pages:||371 - 395|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
113 Computer and information sciences
Open access funding provided by University of Oulu including Oulu University Hospital.
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