Fig. 4

The x-axis represents the four-point scale (0: ‘rarely or none of the time’; 1: ‘some or a little of the time’; 2: ‘occasionally or a moderate amount of time’; 3: ‘most or all of the time’). The y-axis indicates the percentage frequency of responses for each scale point. The curves in the top row depict the average frequency distribution of responses across all participants for each column cluster. In contrast, the curves in rows 2 to 6 show the average frequency distribution for participants within each mental health group, highlighting differences in symptom severity and response patterns across groups