Coding is generally quicker and more accurate and credible the more expertise coders have in the subject of the material being analyzed. For example, in coding documents pertaining to Medicare claims, the coder’s knowledge of medical terminology and practices would probably be useful.
Coders are trained to accurately apply the codes in training sessions that inform them about the purpose of the content analysis, the nature of the textual material, and the coding scheme. This explanatory information is then followed by practice with real or simulated text. Coding accuracy may require several sessions with intersession feedback to the coders.
Source: GAO (2013), Content Analysis: A Methodology for Structuring and Analyzing Written Material: PEMD-10.3.1, BiblioGov.