“…Furthermore, the focus group method has been recommended in scale development due to its demonstrated ability to improve content validity and to form a comprehensive item pool that is not constricted by potentially limited perspectives from researchers (Hoyt & Mallinckrodt, 2012; Mallinckrodt et al, 2016). This is especially important given that proactive coping might be considered as a composite variable based on previous research (e.g., Tian & Heppner, 2018), omitting a causal indicator is equivalent to omitting a part of the construct (Bollen & Lennox, 1991). In addition, the focus group method offers several advantages in comparison to individual interviews, including more in-depth discussion through open conversations, inhibiting individuals from providing misleading information due to group pressures, allowing investigators to learn contrasting viewpoints, and being both more cost and time effective (Vogt et al, 2004).…”