*3.7. Statistics*

The homogeneity of the items in the subscales of the EPIQ was analysed by calculating Cronbach's alpha using Statistical Package for the Social Sciences (SPSS) software version 20. Cronbach's alpha was 0.98, which shows high internal consistency and, according to Brace, Kemp and Snelgar [21], is considered satisfactory. Other results are descriptively presented in actual numbers and percentages. A Kolmogorov–Smirnov test was used to explore normality. As a result of skewness in the data, Spearman's rho was used to test co-variation. Means were compared using the Mann–Whitney U and Kruskal–Wallis tests. Statistical significance was recognised at *p* < 0.05, and all tests were two-tailed.
