Inter-rater reliability (IRR) within the scope of qualitative research is a measure of or conversation around the “consistency or repeatability” of how codes are applied to qualitative data by multiple coders (William M.K. Trochim, Reliability). In qualitative coding, IRR is measured primarily to assess the degree of consistency in how a code system is applied.  However, it also provides an assessment that informs the process of identifying where acceptable consistency is found—and what that looks like—and where unacceptable levels of consistency are found and, thus providing guidance on what steps may be taken to increase consistency.

To learn more about inter-Rater reliability please check out our official Dedoose Inter-Reliability Article. 

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References

Trochim, W. M. (2006), Reliability. Retrieved December 21, 2016, from http://www.socialresearchmethods.net/kb/reliable.php