“…Although some studies have found that symptoms of anxiety developmentally precede symptoms of depression (e.g., Cole, Peeke, Martin, Truglio, & Seroczynski, 1998; Keenan, Feng, Hipwell, & Klostermann. 2009; Snyder et al, 2009), there is a growing record of evidence to support a bidirectional relationship between these symptoms across development (e.g., Hale, Raaijmakers, Muris, van Hoof, & Meeus, 2009; Lavigne, Hopkins, Gouze, & Bryant, 2015; Moffitt et al, 2007). For example, Hale et al (2009) found that in a sample of children and adolescents at-risk for anxiety, higher levels of anxiety symptoms positively predicted the slope of depressive symptoms over time and vice versa, such that initially high levels of symptoms predicted less reduction in the parallel symptom.…”