Dark triad traits are often associated with maladaptive social and interpersonal interactions, such as dishonesty and self-centeredness; thus, it is important to explore predictors of the dark triad in order to better facilitate the reduction of such behaviors. The present study adopted a self-report approach with a total of 5,207 Chinese undergraduate students participated in the study. We found that relatedness need dissatisfaction significantly predicted the presence of dark personalities, which was mediated by prevention focus. Conditional process model analysis found that this mediating effect was stronger when depression levels were lower. Final study results contributed to further understanding predictors of the dark triad. Study limitations and future research directions were also examined.

Since the outbreak of the COVID-19 pandemic in December 2019, millions of people have been infected with the disease. The COVID-19 pandemic also produced severe mental health problems, such as loneliness and depression. The present study aimed to examine the mediating role of cognitive reappraisal and moderating role of resilience in the relationship between young adults’ loneliness and depression during the pandemic by adopting a cross-sectional research approach. In March 2020, 654 young adults (18–29 years old) were recruited to complete the measures for loneliness, depression, emotion regulation, and resilience. Results found that loneliness was positively and moderately associated with depression (r = 0.531, p < 0.001), and that both loneliness and depression were separately negatively associated with cognitive reappraisal (r = −0.348, p < 0.001; r = −0.424, p < 0.001) and resilience (r = −0.436, p < 0.001; r = −0.419, p < 0.001). The results indicated that both loneliness and depression were not associated with expressive suppression (r = 0.067, p = 0.087; r = −0.002, p = 0.961). The moderated mediation model results revealed that only cognitive reappraisal partially mediated the relationship between loneliness and depression (b = −0.301; Boot 95% CI = −0.388, −0.215). In addition, the results of the moderated mediation model indicated that resilience moderated the association between loneliness and depression (b = 0.035, p < 0.001, Boot 95% CI = 0.014, 0.055), while also moderated the impact of cognitive reappraisal on depression (b = −0.031, p < 0.001, Boot 95% CI = −0.058, −0.005). These findings have practical implications that broaden our understanding of depression in young adults and shed light on how to enhance cognitive reappraisal and resilience as a means of combating depression in this age group during the COVID-19 pandemic.