There is a recent study (to be published at ESEM'20) on an empirical validation of "Cognitive Complexity" as a measure of source code understandability: https:/

There is a recent study (to be published at ESEM'20) on an empirical validation of "Cognitive Complexity" as a measure of source code understandability: https://arxiv.org/abs/2007.12520 https://arxiv.org/abs/2007.12520 The authors state in the conclusion: "The metric correlates with the time it takes a developer to understand source code, with a combination of time and correctness, and with subjective ratings of understandability."