“…Researchers also questioned the validity of using centrality indices to study mood symptom networks (Bringmann et al, 2018;Forbes et al, 2017;Hallquist et al, 2019), including betweenness and closeness centrality as measures of node importance (Bringmann et al, 2018), and struggled with statistical equivalent network and latent variable models despite their marked conceptual differences (Markman et al, 2018;Molenaar et al, 2007, which suggests that other and more advanced methodologies are required. Future studies might apply more advanced dynamic system techniques (examples in this book and ), dynamic cluster models (Ernst et al, 2019), and more diverse and multimethod measures (e.g, observers, language analyses, interviews), as the almost exclusive usage of self-report measures of adolescents' anxiety and depression goes along with some threats to validity (Eisenberg et al, 2010), and should be interpreted with caution.…”