snake_case is better "Although, no difference was found between identifier styles with respect to accuracy, results indicate a significant improvement in time

snake_case is better "Although, no difference was found between identifier styles with respect to accuracy, results indicate a significant improvement in time and lower visual effort with the underscore style. " http://www.cs.kent.edu/~jmaletic/papers/ICPC2010-CamelCaseUnderScoreClouds.pdf http://www.cs.kent.edu/~jmaletic/papers/ICPC2010-CamelCaseUn... Personally I can't decide on what to use so there is usually a mix with snake_case and camelCase, even within the same project, depending on what it is applied on.