Question: What are the most common types of threats to validity in empirical studies in software engineering you have witnessed? What are the most challenging to overcome?



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  • Sebastian Elbaum


    • I think that one of the most critical and also one of the hardest threats to address in practice is the internal threat due to researcher bias. In software engineering it is common for researchers to perform experiments and studies of their own approaches (e.g., algorithms, techniques, processes.) By definition, this is biased. We all [...]


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