Analyzing Software Engineering Experiments: Everything You Always Wanted to Know but Were Afraid to Ask

Experimentation is a key issue in science and engineering. But it is one of software engineering's stumbling blocks. Quite a lot of experiments are run nowadays, but it is a risky business. Software engineering has some special features, leading to some experimentation issues being conceived of differently than in other disciplines. The aim of this technical briefing is to help participants to avoid common pitfalls when analyzing the results of software engineering experiments. The technical briefing is not intended as a data analysis course, because there is already plenty of literature on this subject. It reviews several key issues that we have identified in published software engineering experiments, and addresses them based on the knowledge acquired after 19 years running experiments.