2.6. Sample Size Calculation

Although there is no standard for a minimum number of participants in qualitative research, our internal statistician experts have identified a sample size of 10 subjects as adequate to achieve saturation of the collected information [35]. Similarly, Langford and colleagues [36] and Morgan [37] recommend 6–10 individuals, and Kuzel [38] suggests that 6–8 data sources or sampling units are sufficient when selecting homogeneous samples in qualitative research. Morse [39] also suggests that qualitative researchers use at least six participants for investigations aimed to understand the essence of the experience lived by individuals.

Therefore, a sample of 10 adolescent-caregiver dyads (gender-homogeneous)—for a total of 20 subjects—was deemed sufficient for this study.