Coding Metaphors in Interaction: A Study Protocol and Reflection on Validity and Reliability Challenges

With this study protocol, we present our approach to collaboratively coding metaphors in medical consultations, using the qualitative analysis software package ATLAS.ti. This project came with a number of challenges but also yielded a coded data set that was rich and versatile, and allowed for a wide array of analyses. We therefore believe it can be of interest to share the details of the process, to (1) provide an hands-on approach to qualitative, collaborative (metaphor) coding, and (2) contribute to our understanding and the advancement of qualitative methods in relation to coding metaphors, and coding more generally. The protocol can be of interest for researchers interested in collaborative qualitative coding, of metaphors or other (linguistic) units, using software. We specifically describe how we set up our initial coding system, and how we further developed it inductively; how we dealt with the fuzziness of metaphors; how we approach cleaning between coding rounds; how we divided work over and collaborated as a team of three coders with different but related cultural and linguistic backgrounds; how we structured our documentation and logbook. We then discuss how this set of guidelines complements the theoretical literature and more general guidelines on (metaphor) coding, and on reliability and validity in qualitative research. We will reflect on both a number of logistic and practical issues, as well as methodological and empirical challenges, and advantages and disadvantages of our approach.