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We present the results of a small eye-tracking study of novice and experienced programmers asked to deduce the output of Python and Java code snippets. We observe experienced programmers paying more visual attention to code comments, and when the comments provided are purposefully misleading, the experienced programmers are more likely to incorrectly describe the code output than their novice counterparts. While preliminary, these results suggest that experienced programmers, who are well-trained in the importance of documentation as part of the software development process, may have an initial tendency to put too much confidence in code comments when faced with program comprehension tasks. Keywordsprogram comprehension, eye tracking, code comments

Do Experienced Programmers put too Much Confidence in Comments?