Title
Increasing Validity Through Replication: An Illustrative TDD Case
Abstract
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.
Year
DOI
Venue
2020
10.1007/s11219-020-09512-3
Software Quality Journal
Keywords
DocType
Volume
Experiment, Replication, Threats to validity, Moderator, TDD
Journal
28
Issue
ISSN
Citations 
2
0963-9314
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Adrian Santos112.72
sira vegas258836.91
Uyaguari Fernando300.34
Oscar Dieste434331.49
Burak Turhan5557.54
N. Juristo6468.87