*2.4. Data Analysis*

All data was analyzed thematically with the aid of CMapTools (v. 6.01.01), a visual concept mapping tool under an inductive approach (i.e., without developing categories *a priori*) [27] to identify perceived changes across the Australian GA industry in recent years, and to draw insight into meaningful relationships between: The role of the regulator/regulation, safety in operations, and links with ways of working. Figure 2 shows an overview of the data analysis process; in short, statements were arranged into clusters (i.e., "meaning units") through gradual and systematic application of open, axial and selection coding via concept mapping to identify ideas and draw connections. Figure 3 shows how the data looked like in CmapTools at different stages of the analysis. Through this process, data were thus coded semantically from description to interpretation, and grouped into overarching themes, and each were individually analysed to identify patterns between themes.

**Figure 2.** Overview of the data analysis process showing the three main steps of open, axial, and selective coding undertaken. Through this systematic process, data were coded semantically from description to interpretation.

**Figure 3.** Illustration of concepting mapping of coded data in CmapTools. The large screenshot depicts arrangemen<sup>t</sup> of data midway through Steps 2 and 3 (axial and selective coding) and the inset (bottom-left) highlights connections between meaning units across thematic groupings in a collapsed form. Note: writing in picture is designed to provide an overview and is intentionally illegible.

Data collection was performed by a professional working within the GA sector in the capacity of a junior researcher in the service of a psychology Honours project; however, in an effort to maintain internal consistency, reduce chances of personal bias, and address questions of reliability and trustworthiness of the findings, all data analysis for this study was subsequently performed by a senior academic who was well-versed in the research design, but who also worked outside the GA industry (A.N.). Review and checking of findings and final codes was undertaken by an academic with intimate knowledge of the aviation industry (K.I.K).
