396 Empirical Research in Software Engineering
RQ3: What is the comparative performance of different techniques when we take
into account different performance measures?
A number of performance measures are available in literature to assess a predic-
tion model. It is important to analyze the capability of a technique by evaluating
the change prediction model developed by the technique using various perfor-
mance measures. The comparative performance of techniques could be differ-
ent when we take into account different performance measures. For example,
model developed by technique A may give good accuracy values but very low
F-measure values.
RQ4: Which pairs of techniques are statistically signicantly different from each
other for develop ...