(Mis)conceptualising themes, thematic analysis, and other problems with Fugard and Potts’ (2015) sample-size tool for thematic analysis

One of us (VC) was having a conversation with a student recently about the origins and history of thematic analysis (TA). The student had read Qualitative Research in Counselling and Psychotherapy (McLeod, 2011), a text which presents TA as a variant of grounded theory. Victoria commented that she thought that TA evolved from content analysis, and therefore predated grounded theory, and discussed her recent discovery of the use of a variant of TA in psychotherapy research in the 1930s-1950s. The student let out a heavy sigh and slumped in her chair, bemoaning her ability to ever fully grasp qualitative research in all its complexity. This reaction is not uncommon. Students learning and implementing qualitative research at times find it bewildering and challenging; simple models of ‘how to do things’ can appear to offer reassuring certainty. But simplified models, especially if based in confidently-presented-yet-partial accounts of the field or an approach, at best obfuscate and at worst lead to poor quality research. In our discipline (psychology), students typically learn about qualitative research only after they have been fully immersed in the norms, values and methods of scientific psychology. Many find it difficult to let go of what we call a ‘quantitative sensibility’. For such students, and others not well versed in a qualitative sensibility, Fugard and Potts’ (2015) tool for determining sample sizes in TA research has great intuitive appeal; it provides a life-raft to cling to in the sea of uncertainty that is qualitative research. Thus, we share Hammersley’s (2015) concerns that their tool will be used by funding bodies and others (e.g. editors, reviewers) to determine and evaluate sample sizes in TA research. We fear it will result in further confusion about, and further distortion of, the assumptions and procedures of qualitative research. We here build on concerns expressed by others (Byrne, 2015; Emmel, 2015; Hammersley, 2015) to briefly highlight why this quantitative model for qualitative sampling in TA is problematic, based on flawed assumptions about TA, and steeped in a quantitative logic at odds with the exploratory and qualitative ethos of much TA research.