
341Validity Threats
8.3 Threats and Their Countermeasures
Identication of threats is important to assess their impact on the study outcomes and
conclusions. However, to increase the validity of the study, threats to the study should
be mitigated. It is important to not only identify the threats to a study, but a researcher
should perform a number of actions to address these threats and reduce their effect on the
outcomes of the study. To give an overview of threats to fault prediction primary studies,
we analyzed 56fault prediction studies from the year 1999to 2013. The aim of the study
is to identify the threats to validity corresponding to ...