“…Third, the results of this study show relationships between different predictor variables and QoL scores, but causal relationships were not established. Finally, we were unable to provide additional data on the relationship between QoL and other relevant variables, such as adaptive behavior, the presence of associated conditions, informants' demographic characteristics, parental socioeconomic status, or family factors (Bacherini et al, 2021; Balboni et al, 2020; 2021; Haddad et al, 2018; Lee, Knafl, et al, 2021; Menardo et al, 2017), which could increase the value of the explained variance. Future investigations on individual QoL in this population should therefore study the role of other variables, especially those that are susceptible to change (Shields et al, 2018; 2020) and that could act as mediating and moderating variables of QoL-related personal outcomes (Gómez, Schalock, & Verdugo, 2020).…”