4.1.2. Data Analysis

It was challenging to analyse the data in a way that would provide meaningful and insightful output as the focus of the study was somewhat narrow, and there is little existing literature for means of comparison. By evaluating the most recent and relevant studies [2–5] it was subsequently possible to identify key areas to initially focus upon.

### 4.1.3. Taxonomy Development and Inter-Rater Reliability

As mentioned in Section 2.4, only one subject matter expert coded a sample of 10 events out of 121 using the MxFACS taxonomy. Despite the Cohen's Kappa was calculated and revealed a certain level of confidence, this is still one of the limitations of this study. Nevertheless, subsequent to this study, MxFACS taxonomy was used during another research project analysing the accidents and serious incidents only in Nigeria and it was found to be beneficial to analyse all events in the dataset.
